C28H20Na2O6S2
562.6 g/mol
Dye & PigmentDanger
Disodium distyrylbiphenyl disulfonate, (E,E)-
CAS27344-41-8
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
optical brightener for detergents
Disodium distyrylbiphenyl disulfonate, (E,E)- is a fluorescent whitening agent used primarily as an optical brightener in laundry detergents. It absorbs ultraviolet light and re-emits blue light, making fabrics appear whiter.
optical brightener for detergentswhitening agent in paper and textiles
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
ReferenceSame Category
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Fluorescent dye for textiles and paints
ReferenceSame Category
Naphthol Red
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Pigment for inks paints plastics
ReferenceSame Category
Solvent Yellow 98
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fluorescent solvent yellow dye
ReferenceSame Category
D&c red no. 36
CAS2814-77-9
Pigment in cosmetics and inks
Safety Reference
Danger
H318Causes serious eye damage
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for Disodium distyrylbiphenyl disulfonate, (E,E)- (CAS 27344-41-8) is 3204.20.
HS code (international, 6-digit)
3204.20
EU CN code (8-digit)
3204 20 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-[(E)-2-[4-[4-[(E)-2-(2-sulfonatophenyl)ethenyl]phenyl]phenyl]ethenyl]benzenesulfonate
InChIKey
PMPJQLCPEQFEJW-HPKCLRQXSA-L
SMILES
C1=CC=C(C(=C1)/C=C/C2=CC=C(C=C2)C3=CC=C(C=C3)/C=C/C4=CC=CC=C4S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]
Synonyms (18)
- Calcofluor CG
Sourcing Disodium distyrylbiphenyl disulfonate, (E,E)-?
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