C37H34N2Na2O10S3
808.9 g/mol
Food AdditiveWarning
Fast Green FCF
CAS2353-45-9EC219-091-5
Category
Food Additive
Compound Class
Other
Primary Use
Food, drug and cosmetic color additive
Fast Green FCF is a synthetic dye used as a color additive in food, drugs, and cosmetics. It also serves as a biological stain, particularly as a cytoplasmic counterstain in Papanicolaou staining, and is permitted as an inert ingredient in non-food pesticide products.
Color additive in food, drugs, and cosmeticsBiological stain (cytoplasmic counterstain)Inert ingredient in non-food pesticide products
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Sourcing Fast Green FCF?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Related Compounds
SimilarStructure SimilarSimilarity 0.84
Brilliant blue FCF
CAS3844-45-9
Food colorant
SimilarStructure SimilarSimilarity 0.80
Coomassie violet R200
CAS4129-84-4
acid dye for textiles
SimilarStructure SimilarSimilarity 0.80
C.I. Acid blue 15
CAS5863-46-7
Acid dye for coloring
SimilarStructure SimilarSimilarity 0.79
Acid blue 7
CAS3486-30-4
Blue colorant for foods and cosmetics
ReferenceSame Category
Potassium sorbate
CAS24634-61-5
food preservative
ReferenceSame Category
Ferrous ascorbate
CAS24808-52-4
Iron supplementation and food fortification
ReferenceSame Category
Butylated hydroxyanisole
CAS25013-16-5
food antioxidant preservative
ReferenceSame Category
Brilliant Black BN
CAS2519-30-4
Food colorant
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H341Suspected of causing genetic defects
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for Fast Green FCF (CAS 2353-45-9) is 3204.12.
HS code (international, 6-digit)
3204.12
EU CN code (8-digit)
3204 12 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
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
InChIKey
RZSYLLSAWYUBPE-UHFFFAOYSA-L
SMILES
CCN(CC1=CC(=CC=C1)S(=O)(=O)[O-])C2=CC=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)[O-])C=C3)C5=C(C=C(C=C5)O)S(=O)(=O)[O-].[Na+].[Na+]
Synonyms (37)
- 1724 Green
- Aizen Food Green No. 3
- C.I. Food Green 3
- FD & C Green no. 3
- Fast Green FCF
- Fast Green FCF, Dye content
- Food Green No. 3
- Food green 3
- Green No. 3
- Japan Green 3
- Solid Green FCF
- Zelen Stala FCF
- Zelen Stala FCF [Czech]
- Zelen potravinarska 3
- Zelen potravinarska 3 [Czech]
- fast-green
Sourcing Fast Green FCF?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.