Fast Green FCF

Description

Fast Green FCF · CAS 2353-45-9 · C37H34N2Na2O10S3. UNII 9J3VQ0Y6BV. Melting Point: 290 °C (decomposes); Color Additive Status: 74.1203; Color Additive Status: 74.203.

Identification

CAS Registry Number	2353-45-9
PubChem CID	16887
Molecular formula	C37H34N2Na2O10S3
IUPAC name	disodium;2-[[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]-5-hydroxybenzenesulfonate
UNII (FDA)	9J3VQ0Y6BV

Computed Descriptors

Molecular Weight	808.9
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	11
Rotatable Bond Count	9
Exact Mass	808.11709737
Monoisotopic Mass	808.11709737
Topological Polar Surface Area	223
Heavy Atom Count	54
Formal Charge	0
Complexity	1540

Physical & Chemical Properties

Melting Point	290 °C (decomposes)
Color Additive Status	74.1203
Color Additive Status	74.203
Color Additive Status	74.2203
Color Additive Status	82.203

Physical description & handling notes

• Other Solid
• Dark green solid with a metallic luster; [Merck Index] Dark red hygroscopic solid; [Sigma-Aldrich MSDS]
• Dark green powder or granules with a metallic luster
• Red to brown-violet powder or dark green crystals
• Solubility at 25 °C: in ethanol, 0.01 g/100 mL; in glycerol, 20.0 g/100 mL; in propylene glycol, 20.0 g/100 mL
• In ethanol, 5 mg/mL; in ethylene glycol monomethyl ether, 60 mg/mL

Regulatory Status

Regulatory & Food Contact	FDA Regulatory Status of Color Additives: Foods, Drugs, Cosmetics FDA Substance added to food: COLOR OR COLORING ADJUNCT COLOUR: Food Additives 0–25 mg/kg bw ">TRS 1007-JECFA 84/24 FAS 75 JECFA 84/69
GHS notification summary	24.7% (74 / 299)

GHS Hazard Classification

GHS notification summary	24.7% (74 / 299)
Reported hazard statements	H315 (37.8%), H319 (37.8%), H335 (58.2%), H341 (17.7%), H412 (35.1%)

Documented Uses

• Biological stain; color additive in food, drugs and cosmetics.
• Cyptoplasmic counterstain (Papanicolaous's stain), nuclear histone proteins, arginine-rich sites.
• EPA Safer Chemical Functional Use Classes -> Colorants
• Safer Chemical Classes -> Yellow triangle - The chemical has met Safer Choice Criteria for its functional ingredient-class, but has some hazard profile issues
• Food Additives -> COLOUR -> JECFA Functional Classes
• Cosmetics -> Hair dyeing; Cosmetic colorant

Synonyms

Fast Green FCF; 2353-45-9; Food green 3; Solid Green FCF; Food Green No. 3; FD & C Green no. 3; C.I. Food Green 3; C.I. 42053; Zelen Stala FCF; Aizen Food Green No. 3; C.I. FOOD GREEN 3, DISODIUM SALT; Zelen potravinarska 3; 3P3ONR6O1S; CHEBI:82468; Green No. 3; FDC Green No. 3

Frequently Asked Questions

What are the CAS number and molecular formula of Fast Green FCF?

CAS 2353-45-9; molecular formula C37H34N2Na2O10S3; molecular weight — g/mol.

What other names is Fast Green FCF known by?

Fast Green FCF, 2353-45-9, Food green 3, Solid Green FCF, Food Green No. 3, FD & C Green no. 3.

What is the regulatory status of Fast Green FCF?

Documented regulatory listings: FDA Regulatory Status of Color Additives: Foods, Drugs, Cosmetics; FDA Substance added to food: COLOR OR COLORING ADJUNCT; COLOUR: Food Additives.

Is Fast Green FCF classified as hazardous?

24.7% of GHS notifications report no hazard classification (74 of 299).

What are the key physical properties of Fast Green FCF?

Melting Point: 290 °C (decomposes); Color Additive Status: 74.1203; Color Additive Status: 74.203; Color Additive Status: 74.2203.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.