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CAS NO:3087-16-9
EC NO:221-409-2
Green S is a green synthetic coal tar triarylmethane dye with the molecular formula C27H25N2O7S2Na.
As a food dye, it has E number E142.
Green S can be used in mint sauce, desserts, gravy granules, sweets, ice creams, and tinned peas.
Green S is prohibited as a food additive in Canada, United States, Japan, and Norway.
Green S is approved for use as a food additive in the EU and Australia and New Zealand.
Green S is a vital dye, meaning it can be used to stain living cells.
Green S is used in ophthalmology, along with fluorescein and rose bengal, to diagnose various disorders of the eye's surface, dry eyes for example.
Green S is a chemical compound with the chemical formula C₂₇H₂₅N₂NaO₇S₂.
As the name suggests, Green S is green in color but not pale.
Properties
Chemical formula C27H25N2NaO7S2
Molar mass 576.62 g/mol
Melting point 210 °C (410 °F; 483 K) (decomposes)
Green S is used especially to give green color to foods.
Green S is a mixture consisting of components with coloring properties. Food dyes are also used in the food and pharmaceutical industries to mask unwanted colors in the final product. Food dyes are not used directly by the end consumer.
Green S is used by adding to product formulas at the level of “g/kg” during industrial food production.
Typical uses:
Green S is used to give the green color of the flag in the manufacture of all kinds of sweets and confectionery.
Common Uses
Typical applications include beverages, confectionery, bakery, dairy fats and oil, meat, seafood, snacks, dry mixes and seasonings, fruit preparation, and convenient foods.
Green S is an anionic dye often used in textiles. Research studies investigating the removal of Green S by anodic oxidation and electrocoagulation have reported that these two methods may be useful for the removal of this dye in wastewater treatment studies.
About this substance
Helpful information
Green S is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 to < 10 tonnes per annum.
Green S is used at industrial sites.
Consumer Uses
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which Green S is most likely to be released to the environment.
Article service life
ECHA has no public registered data on the routes by which Green S is most likely to be released to the environment. ECHA has no public registered data indicating whether or into which articles the substance might have been processed.
Widespread uses by professional workers
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the types of manufacture using Green S. ECHA has no public registered data on the routes by which Green S is most likely to be released to the environment.
Formulation or re-packing
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which Green S is most likely to be released to the environment.
Uses at industrial sites
Green S is used in the following products: laboratory chemicals.
Green S has an industrial use resulting in manufacture of another substance (use of intermediates).
ECHA has no public registered data on the types of manufacture using Green S. Release to the environment of Green S can occur from industrial use: in processing aids at industrial sites and as processing aid.
Manufacture
ECHA has no public registered data on the routes by which Green S is most likely to be released to the environment.
Source :
Synthetic green color.
Function and Features:
Green food colorant.
Green S is soluble in water, not stable in acid and alkaline solutions.
Product Number G0250
Molecular Formula / Molecular Weight C27H25N2NaO7S2 = 576.61
Physical State (20 deg.C) Solid
CAS RN 3087-16-9
Reaxys Registry Number 6111314
Green S is a food coloring in drinks and candles. Also used on living cells as protein stains for chemical and molecular analyses. Dyes and metabolites, Environmental Testing
IUPAC names
Acid Green 50
Hydrogen [4-[4-(dimethylamino)-α-(2-hydroxy-3,6-disulphonato-1-naphthyl)benzyli dene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium, monosodium salt
Hydrogen [4-[4-(dimethylamino)-α-(2-hydroxy-3,6-disulphonato-1-naphthyl)benzylidene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium, monosodium salt
hydrogen [4-[4-(dimethylamino)-α-(2-hydroxy-3,6-disulphonato-1-naphthyl)benzylidene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium, monosodium salt
Hydrogen ｢4-｢4-(dimethylamino)-$1-(2-hydroxy-3,6-disulphonato-1-naphthyl)benzylidene!cyclohexa-2,5-dien-1-ylidene!dimethylammonium, monosodium salt
sodium 4-[(4-dimethylaminophenyl)-(4-dimethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]-3-hydroxynaphthalene-2,7-disulfonate
sodium 4-[[4-(dimethylamino)phenyl]-(4-dimethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]-3-hydroxynaphthalene-2,7-disulfonate
sodium 4-{[4-(dimethylamino)phenyl][4-(dimethyliminiumyl)cyclohexa-2,5-dien-1-ylidene]methyl}-3-hydroxynaphthalene-2,7-disulfonate
sodium;4-[[4-(dimethylamino)phenyl]-(4-dimethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]-3-hydroxynaphthalene-2,7-disulfonate
SYNONYMS:
[4-[4-(dimethylamino)-alpha-(2-hydroxy-3,6-disulphonato-1-naphthyl)benzylidene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium inner salt sodium salt
ACID GREEN 50
CI 44090
CI NO 44090
CYANOL GREEN B
GREEN S
KITON GREEN S
LABOTEST-BB LT00451847
LISSAMINE GREEN B
WOOL GREEN S
12078green
acidalwoolgreenbs
acidbrilliantgreenbs
AcidgreenBS
acidleathergreens
acilangreenbs
amacidwoolgreens
ammonium,(4-(p-(dimethylamino)-alpha-(2-hydroxy-3,6-disulfo-1-naphthyl)benzyli
brilliantsaeuregruenbs
bucacidwoolgreen
