Green S

Green S
Names
	IUPAC name Sodium 4-[(4-dimethylaminophenyl)-(4-dimethylazaniumylidene-1-cyclohexa-2,5-dienylidene)methyl]-3-hydroxynaphthalene-2,7-disulfonate
	Other names Food green S; FD&C green 4; acid green 50; lissamine green B; wool green S; C.I. 44090; E142;
Identifiers
CAS Number	3087-16-9 check;
3D model (JSmol)	Interactive image;
ChemSpider	82646 check;
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E number	Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value).
PubChem CID	91525;
UNII	9B7E8Y9D0X ☒;
CompTox Dashboard (EPA)	{{#property:P3117}}Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).;
	InChI InChI=1S/C27H26N2O7S2.Na/c1-28(2)20-9-5-17(6-10-20)25(18-7-11-21(12-8-18)29(3)4)26-23-14-13-22(37(31,32)33)15-19(23)16-24(27(26)30)38(34,35)36;/h5-16H,1-4H3,(H2,31,32,33,34,35,36);/q;+1/p-1 check Key: WDPIZEKLJKBSOZ-UHFFFAOYSA-M check; InChI=1/C27H26N2O7S2.Na/c1-28(2)20-9-5-17(6-10-20)25(18-7-11-21(12-8-18)29(3)4)26-23-14-13-22(37(31,32)33)15-19(23)16-24(27(26)30)38(34,35)36;/h5-16H,1-4H3,(H2,31,32,33,34,35,36);/q;+1/p-1 Key: WDPIZEKLJKBSOZ-REWHXWOFAE;
	SMILES [Na+].[O-]S(=O)(=O)c1ccc4c(c1)cc(c(O)c4/C(=C2\C=C/C(=[N+](/C)C)/C=C2)c3ccc(N(C)C)cc3)S([O-])(=O)=O;
Properties
Chemical formula	C27H25N2NaO7S2
Molar mass	576.62 g/mol
Melting point	210 °C (410 °F; 483 K) (decomposes)
Hazards
	GHS labelling:
Pictograms	Error creating thumbnail:
Signal word	Warning
Hazard statements	H302, H315, H319, H335
Precautionary statements	P261, P305+P351+P338
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). ☒ verify (what is check☒ ?) Infobox references

Green S is a green synthetic coal tar triarylmethane dye with the molecular formula C₂₇H₂₅N₂O₇S₂Na.

As a food dye, it has E number E142. It 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.^[3] It is approved for use as a food additive in the EU^[4] and Australia and New Zealand.^[5]

Green S is a vital dye, meaning it can be used to stain living cells. It is used in ophthalmology, along with fluorescein and rose bengal, to diagnose various disorders of the eye's surface, dry eyes for example.^{[citation needed]}^[why?]

References

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^ Sigma-Aldrich Co., Green B. Retrieved on 2019-06-09.
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^ UK Food Standards Agency: Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
^ Australia New Zealand Food Standards CodeLua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).

External links

[1] Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).

[sigma-2] Sigma-Aldrich Co., Green B. Retrieved on 2019-06-09.

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[4] UK Food Standards Agency: Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).

[5] Australia New Zealand Food Standards CodeLua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).

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[3]

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Names


IUPAC name Sodium 4-[(4-dimethylaminophenyl)-(4-dimethylazaniumylidene-1-cyclohexa-2,5-dienylidene)methyl]-3-hydroxynaphthalene-2,7-disulfonate
Other names Food green S FD&C green 4 acid green 50 lissamine green B wool green S C.I. 44090 E142
Identifiers
CAS Number	3087-16-9^checkY
3D model (JSmol)	Interactive image
ChemSpider	82646^checkY
ECHA InfoCard	Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value). Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value).Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).
E number	Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value).
PubChem CID	91525
UNII	9B7E8Y9D0X^☒N
CompTox Dashboard (EPA)	{{#property:P3117}}Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).
InChI InChI=1S/C27H26N2O7S2.Na/c1-28(2)20-9-5-17(6-10-20)25(18-7-11-21(12-8-18)29(3)4)26-23-14-13-22(37(31,32)33)15-19(23)16-24(27(26)30)38(34,35)36;/h5-16H,1-4H3,(H2,31,32,33,34,35,36);/q;+1/p-1^checkY Key: WDPIZEKLJKBSOZ-UHFFFAOYSA-M^checkY InChI=1/C27H26N2O7S2.Na/c1-28(2)20-9-5-17(6-10-20)25(18-7-11-21(12-8-18)29(3)4)26-23-14-13-22(37(31,32)33)15-19(23)16-24(27(26)30)38(34,35)36;/h5-16H,1-4H3,(H2,31,32,33,34,35,36);/q;+1/p-1 Key: WDPIZEKLJKBSOZ-REWHXWOFAE
SMILES [Na+].[O-]S(=O)(=O)c1ccc4c(c1)cc(c(O)c4/C(=C2\C=C/C(=[N+](/C)C)/C=C2)c3ccc(N(C)C)cc3)S([O-])(=O)=O
Properties
Chemical formula	C₂₇H₂₅N₂NaO₇S₂
Molar mass	576.62 g/mol
Melting point	210 °C (410 °F; 483 K) (decomposes)^[1]
Hazards
GHS labelling:^[2]
Pictograms	Error creating thumbnail:
Signal word	Warning
Hazard statements	H302, H315, H319, H335
Precautionary statements	P261, P305+P351+P338
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). ☒N verify (what is ^checkY☒N ?) Infobox references

Green S

References

External links

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