C14H8N2Na2O10S2
474.3 g/mol
Dye & PigmentWarning
Disodium 4,4'-dinitro-2,2'-stilbenedisulfonate
CAS3709-43-1EC223-051-2
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
intermediate for dyes and optical brighteners
Disodium 4,4'-dinitro-2,2'-stilbenedisulfonate is a white powder. It is used as an intermediate in the production of dyes and optical brighteners.
intermediate for dyesintermediate for optical brighteners
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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Referencestereoisomer of
(E)-4,4'-dinitro-2,2'-stilbenesulfonic acid
CAS128-42-7
Intermediate for azo dyes
Referencesame scaffold
4-Nitro-4'-aminostilbene-2,2'-disulfonic acid
CAS119-72-2
stilbene dye intermediate
Referencesame scaffold
Resveratrol
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nutritional supplement and antioxidant
Referencesame scaffold
(E)-1-bromo-4-(4-chlorostyryl)benzene
CAS51665-23-7
research compound
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Disodium 4,4'-dinitro-2,2'-stilbenedisulfonate (CAS 3709-43-1) is 2904.99.
HS code (international, 6-digit)
2904.99
EU CN code (8-digit)
2904 99 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;5-nitro-2-[(E)-2-(4-nitro-2-sulfonatophenyl)ethenyl]benzenesulfonate
InChIKey
SDCDTWFAOKXZHD-SEPHDYHBSA-L
SMILES
C1=CC(=C(C=C1[N+](=O)[O-])S(=O)(=O)[O-])/C=C/C2=C(C=C(C=C2)[N+](=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]
Synonyms (20)
- DNDS
- DNDS disodium
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