P-CHLOROTOLUENE

p-Chlorotoluene is a clear, colourless to pale yellow, combustible aromatic liquid with chemical formula C₇H₇Cl, molecular weight 126.58 g/mol, CAS number 106-43-4, EC number 203-397-0, melting point 6–8°C, boiling point 162°C, density 1.07 g/mL at 25°C, refractive index n20/D 1.52, flash point 121°F (49°C), aromatic odour, vapour density 4.38 (vs air), vapour pressure 10 mmHg at 45°C, and explosive limits 0.7–12.2% (V/V); it is the para-isomer of monochlorotoluene (1-chloro-4-methylbenzene), practically insoluble in water (0.040 g/L at 20°C) but fully miscible with ethanol, ether, acetone, benzene, and chloroform.
p-Chlorotoluene is one of the most commercially important single-ring aryl chloride intermediates, with the more valuable para-isomer separated from the ortho-isomer by distillation or falling-film freeze crystallisation (purity >99%); it is used as the key starting material for the synthesis of p-chlorobenzotrichloride and p-chlorobenzotrifluoride (herbicide trifluralin precursor), p-chlorobenzaldehyde, p-chlorobenzoyl chloride, p-chlorobenzoic acid, p-chlorobenzyl chloride, 4-chlorobenzonitrile, and 2,4- and 3,4-dichlorotoluenes used in agrochemicals, pharmaceuticals, dyes, and specialty chemicals.
p-Chlorotoluene is classified under GHS as a flammable liquid (H226) and is harmful if swallowed (H302), harmful if inhaled (H332), may cause an allergic skin reaction (H317), and is toxic to aquatic life with long-lasting effects (H411); UN number UN 2238; Hazard Class 3; Packing Group III; WGK Germany 2; RTECS XS9010000; NFPA 704: Health 2 / Fire 2 / Reactivity 0.

CAS Number: 106-43-4
EC Number: 203-397-0
Molecular Formula: C₇H₇Cl
Molecular Weight: 126.58 g/mol

Synonyms: 4-Chlorotoluene, 1-Chloro-4-methylbenzene, 4-Chloro-1-methylbenzene, 1-Methyl-4-chlorobenzene, para-Chlorotoluene, p-Tolyl chloride, 4-Methylphenyl chloride, 4-Tolyl chloride, p-Methylchlorobenzene, 4-Methylchlorobenzene, Monochlorotoluene (p-isomer), p-Chloromethylbenzene, Benzene 1-chloro-4-methyl-, 4-chlorotoluene-4-methyl-benzene, p-Chlortoluol, CCRIS 6000, HSDB 1343, NSC 404114, MFCD00000631, BRN 1903635, ChEBI CHEBI:34401, CHEMBL1797268, FDA UNII Q8R236H42N, DTXSID8024814, RefChem:98627, CAS 106-43-4

p-Chlorotoluene has the molecular formula C₇H₇Cl and a molar mass of approximately 126.58 g/mol.
The structure of p-Chlorotoluene contains a chlorine atom and a methyl group positioned opposite each other on a benzene ring.

Also known as 4-chlorotoluene, p-Chlorotoluene represents the para isomer of chlorotoluene.
The symmetrical substitution pattern distinguishes p-Chlorotoluene from the ortho and meta isomers.

p-Chlorotoluene normally appears as a clear and colorless liquid with a characteristic aromatic odor.
At temperatures near its melting point, p-Chlorotoluene may solidify into a crystalline material.

The melting point of p-Chlorotoluene lies near 8°C, while its boiling point is approximately 162°C.
Under ordinary conditions, p-Chlorotoluene evaporates more slowly than toluene because of its higher molecular mass.

Water dissolves only a very small amount of p-Chlorotoluene.
Many common organic solvents readily mix with or dissolve p-Chlorotoluene.

A density slightly greater than that of water causes liquid p-Chlorotoluene to form a lower layer in mixtures with water.
The refractive and physical properties of p-Chlorotoluene support its identification and quality control.

Industrial production of p-Chlorotoluene commonly involves the controlled chlorination of toluene.
Direct chlorination usually produces p-Chlorotoluene together with ortho-chlorotoluene and smaller amounts of other products.

Distillation, crystallization or combined separation methods can isolate p-Chlorotoluene from chlorination mixtures.
The relatively high melting point of p-Chlorotoluene can assist its separation from other chlorotoluene isomers.

p-Chlorotoluene functions primarily as an intermediate in organic synthesis.
Chemical manufacturers use p-Chlorotoluene to prepare agrochemical, pharmaceutical and specialty chemical intermediates.

Oxidation of the methyl group in p-Chlorotoluene can produce p-chlorobenzoic acid.
Controlled side-chain chlorination of p-Chlorotoluene can produce p-chlorobenzyl chloride.

p-Chlorotoluene contributes to the synthesis of selected dyes, pigments and optical brightener intermediates.
The aromatic structure of p-Chlorotoluene makes further substitution and functionalization possible.

Electrophilic substitution reactions involving p-Chlorotoluene are influenced by both the methyl and chlorine substituents.
The methyl group activates the aromatic ring of p-Chlorotoluene, while the chlorine atom modifies its electronic behavior.

Catalysts and reaction conditions determine the products obtained from p-Chlorotoluene.
Careful temperature control improves selectivity when p-Chlorotoluene undergoes oxidation, chlorination or substitution.

High-purity p-Chlorotoluene is preferred when consistent reaction performance and product quality are required.
Commercial grades of p-Chlorotoluene may differ in purity, moisture content and isomer composition.

Analytical methods such as gas chromatography can determine the purity of p-Chlorotoluene.
Infrared spectroscopy and mass spectrometry can support the identification of p-Chlorotoluene.

Closed processing equipment helps limit the evaporation of p-Chlorotoluene during industrial use.
Storage away from excessive heat and strong oxidizing agents helps preserve the quality of p-Chlorotoluene.

Recovery by distillation can allow unused p-Chlorotoluene to be returned to suitable production processes.
Efficient process control reduces losses of p-Chlorotoluene and improves raw-material utilization.
Uses of p-Chlorotoluene:
p-Chlorotoluene is the primary industrial starting material for the production of p-chlorobenzotrichloride (via side-chain radical chlorination) and p-chlorobenzotrifluoride (by halogen exchange), which is the key precursor to herbicides including trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine), flucloralin, and oxafluralin.
p-Chlorotoluene is converted to p-chlorobenzyl chloride (by side-chain chlorination) used in rice herbicides and pyrethrin-type insecticides (fenvalerate), and to p-chlorobenzaldehyde (by oxidation) used as an intermediate in the manufacture of pharmaceuticals, dyes, and UV stabilisers for polymers; it is also converted to p-chlorobenzoyl chloride (pharmaceutical anti-inflammatory intermediates including indomethacin) and p-chlorobenzoic acid (dye and textile finishing agent raw material).
p-Chlorotoluene is used as the starting material for the synthesis of paclobutrazol and uniconazole (plant growth regulators), thiobencarb and daimuron (herbicides), and chlorpyrifos-related intermediates in the agrochemical industry.
p-Chlorotoluene is converted to 4-chlorobenzonitrile (via ammonoxidation or Rosenmund-type reactions) and to 2,4- and 3,4-dichlorotoluenes (by further chlorination), which serve as intermediates for agrochemicals, dyes, and specialty fine chemicals.
p-Chlorotoluene is used as a solvent and reaction medium in organic synthesis — particularly for processes where a stable, combustible, high-boiling aromatic solvent compatible with many organic systems is required — including as a heat transfer medium in high-temperature chemical processes and in rubber and synthetic resin processing.
p-Chlorotoluene is used in Suzuki–Miyaura cross-coupling reactions (Pd-catalysed with phenylboronic acid using bisimidazolylidene ligand systems) as a model substrate for evaluating NHC ligand precursors, and as an analytical reference standard and in environmental gas-phase studies.

Benefits and Advantages of p-Chlorotoluene:
The para-isomer offers well-defined, single-isomer chemistry with a higher melting point (6–8°C) than the ortho (−35°C) and meta (−47°C) isomers due to a more tightly packed crystal structure, and is available at ≥99% purity by falling-film freeze crystallisation, enabling highly selective downstream chemistry not achievable with mixed-isomer products.
p-Chlorotoluene's methyl group is selectively oxidisable to aldehyde, carboxylic acid, or acid chloride by standard industrial oxidation and halogenation routes, and the ring chlorine participates in nucleophilic aromatic substitution (SNAr), palladium-catalysed coupling (Suzuki, Heck, Buchwald-Hartwig), and Ullmann-type reactions; this dual-functional reactivity makes it an exceptionally versatile two-point building block for complex molecular synthesis.
The high boiling point (162°C) and thermal stability of p-chlorotoluene make it an effective high-temperature reaction solvent and heat transfer medium that remains liquid under demanding process conditions where lower-boiling solvents would evaporate or require pressurised systems.
p-Chlorotoluene is registered under Article 18(4) REACH and is available at multi-tonne commercial scale (≥20,000 MT/year capacity at individual production sites) with established global supply chains, providing regulatory compliance and supply security across agrochemical, pharmaceutical, and dye manufacturing markets.

Features of p-Chlorotoluene:
p-Chlorotoluene is a colourless to pale yellow, clear oily aromatic liquid at room temperature; it has a distinctive aromatic odour; density 1.07 g/mL at 25°C (specific gravity 1.0697 at 20°C, 1.069 g/mL); melting point 6–8°C (congealing point ~6.5°C; note: it is a low-melting-point solid that may be solid, liquid, or semi-solid depending on ambient temperature); boiling point 162°C; refractive index n20/D 1.52; vapour density 4.38 vs air.
p-Chlorotoluene is practically insoluble in water (solubility 0.040 g/L at 20°C; <0.1 g/100 mL; saturated aqueous solution pH 7.4); soluble in ethanol, ether, acetone, benzene, chloroform, and most common organic solvents; it sinks in water (density >1 g/mL); flash point 121°F (49°C, OC); explosive limits 0.7–12.2% v/v; autoignition temperature >500°C; it is stable and combustible, incompatible with strong oxidising agents.
Key physicochemical parameters: dielectric constant 6.08; dipole moment 2.21 D; logP 3.33 (20°C); molar volume 118.2 mL/mol; Henry's Law constant 2.7×10⁻³ mol/(m³·Pa) at 25°C; liquid viscosity at 50°F (10°C) 0.102 cP decreasing to 0.039 cP at 210°F (99°C); GESAMP bioaccumulation factor 2; liquid surface tension 32.24 dynes/cm at 25°C; NFPA 704: Health 2, Fire 2, Reactivity 0.
p-Chlorotoluene is the most commercially important of the three monochlorotoluene isomers; it is separated from the o-isomer (by-product of direct toluene chlorination, o/p ratio typically ~45:55) by distillation or freeze crystallisation; distillation cannot separate p-chlorotoluene from m-chlorotoluene (both boil at 162°C); m-chlorotoluene is produced industrially exclusively by the diazonium route from m-toluidine.

Chemical Properties of p-Chlorotoluene:
p-Chlorotoluene has IUPAC name 1-chloro-4-methylbenzene, linear formula CH₃C₆H₄Cl, SMILES Cc1ccc(Cl)cc1, InChI=1S/C7H7Cl/c1-6-2-4-7(8)5-3-6/h2-5H,1H3, InChIKey NPDACUSDTOMAMK-UHFFFAOYSA-N; PubChem CID 7239; ChEBI CHEBI:34401; CHEMBL1797268; FDA UNII Q8R236H42N; Beilstein/REAXYS 1903635; MDL MFCD00000631; CompTox DTXSID8024814; RTECS XS9010000.
The methyl group of p-chlorotoluene undergoes radical side-chain chlorination to yield 4-chlorobenzyl chloride (ClC₆H₄CH₂Cl), continued chlorination gives 4-chlorobenzal chloride and 4-chlorobenzotrichloride (ClC₆H₄CCl₃); oxidation of the methyl group gives p-chlorobenzaldehyde (ClC₆H₄CHO) and p-chlorobenzoic acid (ClC₆H₄COOH), and thionyl chloride or PCl₅ treatment gives p-chlorobenzoyl chloride; the ring Cl participates in Pd-catalysed cross-coupling (Suzuki, Heck) and nucleophilic aromatic substitution.
p-Chlorotoluene undergoes electrophilic aromatic chlorination (FeCl₃ catalyst) at the 2- and 3-positions to give 2,4- and 3,4-dichlorotoluenes; it undergoes ring nitration to give 2-nitro-4-chlorotoluene and 4-nitro-2-chlorotoluene; it is converted to 4-chlorobenzonitrile by Pd-catalysed ammonoxidation; its methyl group is oxidised by Pd/Cr-catalysis (Wacker-type) or permanganate.
p-Chlorotoluene is stable under normal conditions; incompatible with strong oxidising agents (peroxides, permanganates, nitric acid); combustion emits toxic hydrogen chloride (HCl) and chlorinated organic smoke; no hazardous polymerisation; OSHA PEL and ACGIH TLV not specifically established for p-chlorotoluene — treat as chlorinated aromatic hydrocarbon; rat oral LD50: 2,100 mg/kg; mouse oral LD50: 1,900 mg/kg.

Production of p-Chlorotoluene:
The dominant industrial route is direct electrophilic ring chlorination of toluene using Cl₂ gas with FeCl₃ or other Lewis acid catalyst; this gives a mixture of approximately 55% p-chlorotoluene and 45% o-chlorotoluene (plus traces of m-isomer); the isomers are separated by distillation (or combined distillation-crystallisation), with falling-film freeze crystallisation achieving p-chlorotoluene purity >99%; annual industrial capacity at single production sites exceeds 20,000 MT/year.
The laboratory and specialty route to p-chlorotoluene is the Balz-Schiemann-type reaction or Sandmeyer reaction via diazotisation of p-toluidine (4-methylaniline): p-toluidine is treated with HCl and sodium nitrite at 0–15°C to form the diazonium salt, which is then decomposed with cuprous chloride (Sandmeyer conditions) at 60°C to give p-chlorotoluene in 70–79% yield after steam distillation, washing, drying, and fractional distillation at 158–162°C.
Commercial p-chlorotoluene is available at ≥98% (GC) and ≥99.5% (GC) purity with principal impurity ≤0.30% other chlorotoluene isomers (mainly o-chlorotoluene); specification limits: non-volatile residue ≤0.02%; water (K-F) ≤0.05%; density 1.070–1.075 g/cm³ at 20°C; refractive index 1.519–1.523; standard packaging: 200 kg plastic drum, 200 kg galvanised iron drum, or IBC drum; shelf life 36 months under proper storage.

p-Chlorotoluene Material Safety Data Sheet (MSDS):

Handling of p-Chlorotoluene:
p-Chlorotoluene is a flammable liquid (flash point 49°C) — keep away from all ignition sources, open flames, sparks, and hot surfaces; do not smoke in handling areas; use bonded and grounded containers to prevent static charge; avoid breathing vapours, mist, and fumes; use only in a well-ventilated area or with local exhaust ventilation.
Avoid contact with skin and eyes; wear chemical-resistant gloves, safety goggles, and protective clothing; p-chlorotoluene may cause an allergic skin reaction upon repeated contact; avoid release to the environment — it is toxic to aquatic life with long-lasting effects; keep container tightly closed.

p-Chlorotoluene SDS:

Stability and Reactivity of p-Chlorotoluene:

Chemical stability:
p-Chlorotoluene is stable under recommended storage conditions in a cool, dry, well-ventilated place at 2–8°C in a tightly closed container.
p-Chlorotoluene is combustible; explosive limits 0.7–12.2% v/v; stable under normal conditions; no hazardous polymerisation.

Reactivity:
p-Chlorotoluene is incompatible with strong oxidising agents (peroxides, permanganates, nitric acid) — reacts with heat evolution and risk of fire.
Combustion and thermal decomposition produce toxic hydrogen chloride (HCl) and chlorinated hydrocarbon fumes.

Conditions to avoid:
All sources of ignition (open flame, sparks, hot surfaces).
Strong oxidising agents (peroxides, permanganates, concentrated nitric acid).
Temperatures above flash point (49°C) where vapours may accumulate.
Release to sewers and water courses (toxic to aquatic life).

Incompatible materials:
Strong oxidising agents.
Strong acids and strong bases (at elevated temperature).
Chemically active metals (sodium, potassium, aluminium) — risk of violent reaction.

Hazardous decomposition products:
Hydrogen chloride (HCl) gas — corrosive respiratory irritant.
Phosgene and chlorinated organic compounds — upon incomplete combustion or thermal decomposition.
Carbon monoxide (CO) and carbon dioxide (CO₂) upon combustion.

Handling and Storage of p-Chlorotoluene:

Handling:
Keep away from ignition sources; no smoking; use spark-proof equipment; bond and earth containers during transfer.
Use only in well-ventilated areas or with local exhaust ventilation.
Wear chemical-resistant gloves, safety goggles, and protective clothing.
Avoid skin contact and inhalation of vapours; wash hands after handling.
Do not discharge to sewers or waterways — marine pollutant.

Storage:
Store in a cool (2–8°C recommended; below 30°C maximum), dry, well-ventilated warehouse away from direct sunlight, heat, and ignition sources.
Store in tightly closed containers; keep separate from oxidants and acids.
Packaging: 200 kg plastic drum; 200 kg galvanised iron drum; IBC drum.
Transport: UN 2238; Hazard Class 3 (Flammable liquid); Packing Group III; Marine Pollutant.

First Aid Measures for p-Chlorotoluene:

Inhalation:
Immediately move the affected person to fresh air; if breathing has stopped, give artificial respiration using resuscitation mask (do not perform mouth-to-mouth — chlorinated organic vapour); remove contaminated clothing.
Call for medical aid immediately.

Skin contact:
Immediately remove contaminated clothing and shoes; flush affected areas with plenty of water for at least 15 minutes; wash with soap and water.
Seek medical attention if irritation develops or persists.

Eye contact:
Hold eyelids open and immediately flush with plenty of water for at least 15 minutes, removing contact lenses if possible.
Seek immediate ophthalmological attention.

Ingestion:
If victim is conscious: give one or two glasses of water or milk; induce vomiting (only if directed by medical personnel — do NOT induce vomiting if victim is unconscious).
Call a poison centre or physician immediately.

Firefighting Measures for p-Chlorotoluene:

Suitable extinguishing media:
Alcohol-resistant foam, carbon dioxide (CO₂), dry chemical, sand; mist water (not jet water on burning liquid).
NAERG Guide 130.

Specific hazards:
p-Chlorotoluene is a combustible flammable liquid; vapours are heavier than air (vapour density 4.38) and may travel to distant ignition sources and flash back; combustion produces toxic hydrogen chloride gas and chlorinated organic fumes.
NFPA 704: Health 2 / Fire 2 / Reactivity 0.

Protective equipment for firefighters:
SCBA (self-contained breathing apparatus) and full chemical-resistant protective clothing; do not enter confined spaces with accumulated vapours without SCBA.

Firefighting procedures:
Move undamaged containers away from fire if safe to do so; cool containers with water spray; prevent contaminated firefighting water from entering drains and watercourses.

Accidental Release Measures for p-Chlorotoluene:

Personal precautions:
Remove all ignition sources; use personal protective equipment (SCBA in enclosed areas); evacuate non-essential personnel.
Isolate spill area ≥25 m (solids) or per NAERG Guide 130 for large spills.

Environmental precautions:
Do NOT let p-chlorotoluene enter drains, sewers, or water courses — it is harmful to aquatic life at 1–10 ppm/96 hours; notify local health and wildlife authorities; protect water intakes.

Clean-up methods:
Absorb with inert absorbent material (vermiculite, sand, dry earth — not cellulose-based for significant spill); place in clean, sealed containers for disposal.
Do NOT flush to sewer; dispose as hazardous waste in accordance with local regulations.

Exposure Controls / Personal Protective Equipment for p-Chlorotoluene:

Engineering controls:
Local exhaust ventilation at point of use; work in well-ventilated areas or fume hoods; eliminate all ignition sources.
No specific OSHA PEL or ACGIH TLV established for p-chlorotoluene; apply general aromatic chlorinated hydrocarbon controls.

Eye protection:
Chemical splash goggles; face shield for bulk handling.

Hand protection:
Chemical-resistant gloves (nitrile or neoprene, ≥0.4 mm) tested to EN 374.

Skin and body protection:
Chemical-resistant protective clothing; solvent-resistant boots.

Respiratory protection:
Organic vapour (OV) cartridge respirator with P2/P95 filter for routine handling; full-face SCBA for fire, spill response, or high-concentration exposure.

Hygiene measures:
Wash hands before breaks and at end of workday; remove contaminated clothing immediately; do not eat, drink, or smoke in work areas.

p-Chlorotoluene Identifiers:
CAS Number: 106-43-4
EC Number: 203-397-0
MDL Number: MFCD00000631
PubChem Substance ID: 24847050
Beilstein/REAXYS: 1903635
ChEBI: CHEBI:34401
CHEMBL: CHEMBL1797268
CompTox (EPA): DTXSID8024814
FDA UNII: Q8R236H42N
RTECS: XS9010000
NACRES: NA.22
UNSPSC: 12352100
eCl@ss: 39050207
IUPAC Name: 1-Chloro-4-methylbenzene
Linear Formula: CH₃C₆H₄Cl (C₇H₇Cl)
Molecular Formula: C₇H₇Cl
Molecular Weight: 126.58 g/mol
SMILES: Cc1ccc(Cl)cc1
InChI: InChI=1S/C7H7Cl/c1-6-2-4-7(8)5-3-6/h2-5H,1H3
InChIKey: NPDACUSDTOMAMK-UHFFFAOYSA-N
LogP: 3.33 (20°C)
Dielectric constant: 6.08
Dipole moment: 2.21 D
GHS Signal Word: Danger
GHS Hazard Statements: H226, H302, H317, H332, H411
GHS Precautionary Statements: P210, P261, P264, P270, P272, P273, P280, P301+P312, P302+P352, P304+P340, P312, P333+P313, P363, P391, P501
NFPA 704: Health 2 / Fire 2 / Reactivity 0
UN Number: UN 2238
Hazard Class: 3 (Flammable liquid)
Packing Group: III
Marine Pollutant: Yes (IMO Category B)
RIDADR: UN 2238 3/PG III
WGK Germany: 2
Risk Statements: R10/11, R20, R23/24/25, R43, R51/53
Safety Statements: S7, S16, S24/25, S36/37, S45, S61
NAERG Guide No.: 130
HS Code: 29039990 / 29337900
TSCA: Yes
EINECS: 203-397-0
REACH: Registered (Article 18(4))
Rat oral LD50: 2,100 mg/kg
Mouse oral LD50: 1,900 mg/kg
Aquatic TLm (fish, 96 h): 1–10 ppm

Properties of p-Chlorotoluene:
Physical state: Liquid (low-melting solid — may be solid, semi-solid, or liquid depending on ambient temperature)
Appearance: Clear, colourless to pale yellow oily liquid
Odour: Aromatic
Molecular formula: C₇H₇Cl
Molecular weight: 126.58 g/mol
Melting point: 6–8°C (lit.)
Boiling point: 162°C (lit.)
Flash point: 121°F (49°C, OC)
Autoignition temperature: >500°C
Explosive limits: 0.7–12.2% v/v
Density: 1.07 g/mL at 25°C; 1.0697 at 20°C
Vapour density: 4.38 (air = 1)
Vapour pressure: 10 mmHg (45°C); 2.4 mmHg (20°C)
Refractive index: n20/D 1.52 (lit.); 1.5150–1.521
Water solubility: 0.040 g/L (practically insoluble; <0.1 g/100 mL at 20°C)
Organic solvent solubility: Miscible with ethanol, ether, acetone, benzene, chloroform, and most organic solvents
LogP: 3.33 (20°C)
Dielectric constant: 6.08
Surface tension: 32.24 dynes/cm at 25°C
Henry's Law constant: 2.7×10⁻³ mol/(m³·Pa) at 25°C
pH (saturated aqueous solution): 7.4
GHS Classification: Danger — H226, H302, H317, H332, H411
Storage: 2–8°C; tightly closed; away from ignition sources and oxidants

p-Chlorotoluene Properties — Specifications:
Product name: p-Chlorotoluene (4-Chlorotoluene)
CAS Number: 106-43-4
EC Number: 203-397-0
Molecular Formula: C₇H₇Cl
Molecular Weight: 126.58 g/mol
Purity (GC): ≥98%; ≥99.0% (purum); ≥99.5% (technical grade); ≥99.7% (high purity)
Impurities: ≤0.30% other chlorotoluene isomers (mainly o-chlorotoluene, ≤2%); non-volatile ≤0.02%; water (K-F) ≤0.05%
Density (20°C): 1.070–1.075 g/cm³
Refractive index (n20/D): 1.519–1.523
Appearance: Clear, colourless to pale yellow liquid; conforms to structure by IR
Melting point: 6–8°C
Boiling point: 162°C
Flash point: 121°F (49°C)
Storage: 2–8°C; tightly closed; cool, dry, ventilated, away from sunlight and ignition sources; below 30°C (maximum)
Shelf life: 36 months
Packaging: 200 kg plastic drum; 200 kg galvanised iron drum; IBC drum
Documents: CoA (Certificate of Analysis), MSDS/SDS, TDS available

Names of p-Chlorotoluene:
p-Chlorotoluene
4-Chlorotoluene
1-Chloro-4-methylbenzene
4-Chloro-1-methylbenzene
1-Methyl-4-chlorobenzene
4-Methyl-1-chlorobenzene
para-Chlorotoluene
p-Tolyl chloride
4-Tolyl chloride
4-Methylphenyl chloride
p-Methylchlorobenzene
4-Methylchlorobenzene
p-Chloromethylbenzene
Monochlorotoluene (p-isomer)
Benzene 1-chloro-4-methyl-
p-Chlortoluol (German)
4-Chlortoluol (German)
pCT (abbreviation)
NSC 404114
CCRIS 6000
HSDB 1343
MFCD00000631
CAS 106-43-4
UN 2238