O-PHTHALALDEHYDE

o-Phthalaldehyde or ortho-phthalaldehyde is a herbal chemical with the formula C6H4(CHO)2.
often abbreviated as OPA.
o-Phthalaldehyde is a quadrantdehyde consisting of two formyl (CHO) groups attached to carbon centers located on a benzene exchange.

o-Phthalaldehyde is a pale yellow solid substance.
o-Phthalaldehyde is a building block in the synthesis of heterocyclic pictures.
o-Phthalaldehyde is a reagent in the analysis of amino acids.

CAS number: 643-79-8
EC Number: 211-402-2
Chemical formula: C 8 H 6 O 2
Molar mass: 134.134 g mol −1

Phthalaldehyde is a chemical product with the formula C6H4(CHO)2.
Benzene prepared with phthalic acid is one of the three isomers of dicarbaldehyde.
This pale yellow solid is a building block in the synthesis of heterocyclic pictures and a reagent in the analysis of amino acids.
OPA dissolves in water solution at pH < 11.5.
Its solutions deteriorate when exposed to UV rays.
It is similar to the modern synthesis of o-Phthalaldehyde.
o-Phthalaldehyde results in hydrolysis using oxalate.

The reactivity of o-Phthalaldehyde is complicated by the fact that it forms both mono- and dihydrate, common 20, in water.
Their reactions with nucleophiles often involve both carbonyl groups.
o-Phthalaldehyde is tested by capillary electrophoresis and chromatography of amines or sulfhydryls in solutions, especially those found in proteins, peptides and amino acids.
o-Phthalaldehyde is used in a very sensitive fluorogenic reagent.
The isoelectric signals exhibited by o-Phthalaldehyde thiols react specifically with primary amines above Pi.
o-Phthalaldehyde also causes amines such as n-propylamine or 2-aminoethanol to react with thiols.
The method is spectrometric.
o-Phthalaldehyde has fluorescent emission at 436-475 nm (max. 455 nm) with excitation at 330-390 nm (max. 340 nm).

o-Phthalaldehyde is widely used as a high-level disinfectant for medical instruments.
Disinfection with o-Phthalaldehyde is indicated for semicritical instruments that come into contact with mucosa or broken skin, such as internal ultrasound transducers.
o-Phthalaldehyde can be polymerized.
In the polymer, one of the oxygen atoms forms a bridge to the other non-ring carbon of the same phthalaldehyde unit.
It forms a bridge to the extra-ring carbon of the o-phthalaldehyde unit.
Poly(phthalaldehyde) is used in the production of photoresist.

o-Phthalaldehyde is one of the methods used in winemaking to measure the nitrogen that the yeast can absorb, which is needed by the wine yeast.
o-Phthalaldehyde is used in combination with a thiol reagent.
o-Phthalaldehyde is a common method for detecting primary amines in amino acids, peptides and proteins
It is used as a disinfectant and for the fluorometric determination of primary amines and thiols.
An enzyme inhibitor, indicator, chemical intermediate, it is used in water treatment, hair dyeing, wood processing, and to sterilize medical and dental equipment.
o-Phthalaldehyde is also found in antifouling paints.

It is used in combination with a thiol reagent of O-phthalaldehyde (OPA).
o-Phthalaldehyde is a common method for detecting primary amines in amino acids, peptides and proteins.
Despite its widespread use, the exact reaction mechanism has been debated since the 1980s.
Here we measure the kinetics of the reaction between OPA, alanine, and dithiol (1,4-dithiolthreitol, DTT) as a function of pH and reagent concentration.
These new measurements and accompanying kinetic models are used.

SYNONYMS

o-phthalaldehyde
643-79-8
PHTHALALDEHYDE
o-phthaldialdehyde
Benzene-1,2-dicarboxaldehyde
1,2-Benzenedicarboxaldehyde
phthaldialdehyde
Phthalic aldehyde
ortho-Phthalaldehyde
Phthalic dialdehyde
Phthalyldicarboxaldehyde
Phthalic dicarboxaldehyde
benzene-1,2-dicarbaldehyde
o-phthaldehyde
phthalaldialdehyde
o-Phthalicdicarboxaldehyde
1,2-Diformylbenzene
2-PHTHALALDEHYDE
ortho Phthalaldehyde
o-Phthalic dicarboxaldehyde
Phthalaldehydes
OPTA
OPA
orthophthalaldehyde
NSC 13394
ftaral
disopa
CHEBI:70851
EINECS 211-402-2
UNII-4P8QP9768A
BRN 0878317
ortho-phthaldialdehyde
DTXSID6032514
4P8QP9768A
NSC-13394
DTXCID4012514
HSDB8456
4-07-00-02138 (Beilstein Handbook Reference)
Ftaral (January)
NCGC00166206-01
FTHARAL [JANUARY]
1,2-Phthalic dicarboxaldehyde
Orthophthaldialdehyde
ortho-Phthalic Aldehyde
Phthalaldehydes [French]
O-PHTHLDIALDEHYDE (MART.)
O-PHTHLDIALDEHYDE [MART.]
o Phthalaldehyde
1,2-BENZENEDICARBALDEHYDE
Phthaldialdehyde
CAS-643-79-8
ortho Phthalic Aldehyde
Aldehyde, ortho-Phthalic
2-PHTHLDIALDEHYDE
MFCD00003335
phthalaldehyde
o-phthalaldehyde
o-phthal aldehyde
Secure OPA
Disopa (TN)
Epitope ID:176774
2-Phthaldehyde, High purity
SCHEMBL33393
Benzene-1,2-dicarboxacdehyde
O-PHTHALALDEHYDE [MI]
CHEMBL160145
ORTOPHTHALALDEHYDE [VANDF]
BCP29465
NSC13394
STR01056
Tox21_112347
Tox21_300404
1,2-Benzenialdehyde;Phthalaldehyde
AKOS000119186
Tox21_112347_1
CS-W013385
NCGC00166206-02
NCGC00166206-04
NCGC00254339-01
AC-10388
AM20050101
FT-0632732
P0280
EN300-21268
D03470
P-6600
SR-01000944839
Q5933776
SR-01000944839-1
Phthaldialdehyde, for fluorescence, >=99.0% (HPLC)
Z104494958
Phthaldialdehyde, >=97% (HPLC), powder (may contain lumps)
InChI=1/C8H6O2/c9-5-7-3-1-2-4-8(7)6-10/h1-6
25750-62-3