C34H23N7Na2O8S2
767.7 g/mol
Dye & PigmentDanger
C.I. Direct green 1
CAS3626-28-6EC222-835-1
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
Direct dye for cellulose fibers
C. I.
Dye for cellulose fibers (cotton, rayon)Dye for silk and nylon fibersDye for leather and paper
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.
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Related Compounds
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Direct dye for textiles
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CAS36431-22-8
fluoran dye for thermal paper
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Pigment for plastics and coatings
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Disodium 4,4'-dinitrostilbene-2,2'-disulfonate
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intermediate for dyes and optical brighteners
Safety Reference
Danger
H350May cause cancer
H361Suspected of damaging fertility or the unborn child
Customs Tariff Classification
The international HS code for C.I. Direct green 1 (CAS 3626-28-6) is 3204.14.
HS code (international, 6-digit)
3204.14
EU CN code (8-digit)
3204 14 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;4-amino-5-hydroxy-3-[[4-[4-[(4-hydroxyphenyl)diazenyl]phenyl]phenyl]diazenyl]-6-phenyldiazenylnaphthalene-2,7-disulfonate
InChIKey
DDLNJHAAABRHFY-UHFFFAOYSA-L
SMILES
C1=CC=C(C=C1)N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC4=CC=C(C=C4)C5=CC=C(C=C5)N=NC6=CC=C(C=C6)O)N)O.[Na+].[Na+]
Synonyms (79)
- ATLANTIC DARK GREEN BG
- Airedale Green BWD
- Aizen Direct Dark Green BH
- Amanil Green LT
- Atlantic Dark Green
- Atlantic Green WT
- Atul Direct Dark Green P
- Azine Dark Green BH/C
- Azocard Dark Green B
- BENZANIL DARK GREEN
- BENZO DARK GREEN
- Bencidal Dark Green B
- Benzanil Dark Green BW
- Benzo Dark Green B
- Benzo Dark Green BA-CF
- Brasilamina Green B
- C.I. Direct green 1
- CHROME LEATHER DARK GREEN
- Calcomine Dark Green BG
- Chlorazol Dark Green PL
- Chrome Leather Dark Green N
- Chrome Leather Dark Green S
- Chrome Leather Green B
- Cresotine Dark Green B
- DIAMINE DARK GREEN
- DIAZINE DARK GREEN
- DIPHENYL DARK GREEN
- DIRECT BLACK GREEN N
- DIRECT DARK GREEN B (CHINESE)
- DIRECT GREEN 1
- Dark Green EMBL
- Diacotton Dark Green
- Diamine Dark Green B
- Diamine Dark Green N
- Diaphtamine Fast Black FE
- Diaphthamine Fast Black FE
- Diazine Dark Green BO
- Diazine Dark Green P
- Diazol Green Black N
- Diphenyl Dark Green B
- Diphenyl Dark Green BN
- Direct Black Green
- Direct Dark Green
- Direct Dark Green A
- Direct Dark Green B
- Direct Dark Green BF
- Direct Dark Green BG
- Direct Dark Green MB
- Direct Dark Green S
- Direct Dark Green Supra
- Direct Dark Green WS
- Direct Deep Green A
- Direct Green WAC
- ERIE GREEN
- Enianil Dark Green BG
- Erie Green WAC
- Erie Green WT
- Fenamin Green M
- Hispamin Green WT
- Kayaku Direct Dark Green B
- Mitsui Direct Dark Green BX
- NIPPON DARK GREEN B CONC
- Naphtamine Dark Green B
- Naphthamine Dark Green B
- Nippon Dark Green B
- Phenamine Dark Green B
- Pontamine Green S
- Sandopel Dark Green B
- Shikiso Direct Dark Green B
- Tertrodirect Green BG
- Union Dark Green B
- Vondacel Green DB
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