C10H10NaO7S
297.24 g/mol
Dye & PigmentWarning
Dimethyl 5-sulfoisophthalate sodium salt
CAS3965-55-7
Category
Dye & Pigment
Compound Class
Ester
Primary Use
sulfonate monomer for polyester dye
Dimethyl 5-sulfoisophthalate sodium salt is an organic compound that functions as a sulfonate monomer used in the production of polyester dyes. It features an aromatic ring with ester and sulfonate groups, and is supplied as a sodium salt for enhanced solubility.
sulfonate monomer for polyester dye synthesis
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
Fluorescent Brightener 378
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Fluorescent brightener
ReferenceSame Category
Pigment Red 177
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Anthraquinone pigment red 177
ReferenceSame Category
4-Chloro-1,8-naphthalic anhydride
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Fluorescent solvent dye intermediate
ReferenceSame Category
Sodium 3-(N-ethyl-3-methylanilino)propanesulfonate
CAS40567-80-4
photographic dye intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for Dimethyl 5-sulfoisophthalate sodium salt (CAS 3965-55-7) is 2917.39.
HS code (international, 6-digit)
2917.39
EU CN code (8-digit)
2917 39 20
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
InChIKey
YYYWHHMCKHITRA-UHFFFAOYSA-N
SMILES
COC(=O)C1=CC(=CC(=C1)S(=O)(=O)O)C(=O)OC.[Na]
Synonyms (1)
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