C19H23NO3S
345.5 g/mol
Dye & PigmentDanger
1,1,2-Trimethyl-3-(4-sulphonatobutyl)-1H-benz(e)indolium
CAS63149-24-6EC263-961-7
Category
Dye & Pigment
Compound Class
Heterocycle
Primary Use
dye intermediate or inner salt
This compound is a sulfonated indolium dye used primarily as an intermediate in dye manufacturing. Its structure features a trimethylbenzoindole core with a butane sulfonate group, contributing to its anionic surfactant properties.
dye intermediateinner salt for 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
1-Bromoanthraquinone
CAS632-83-7
intermediate for anthraquinone dyes
ReferenceSame Category
Basic fuchsine
CAS632-99-5
histological dye and fluorochrome
ReferenceSame Category
Basic Red 12
CAS6320-14-5
Basic dye for acrylic fibers
ReferenceSame Category
Brilliant green
CAS633-03-4
Biological stain and dye
Safety Reference
Danger
H228Flammable solid
H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for 1,1,2-Trimethyl-3-(4-sulphonatobutyl)-1H-benz(e)indolium (CAS 63149-24-6) is 2933.99.
HS code (international, 6-digit)
2933.99
EU CN code (8-digit)
2933 99 80
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
4-(1,1,2-trimethylbenzo[e]indol-3-ium-3-yl)butane-1-sulfonate
InChIKey
GJCURKVOCXJAIV-UHFFFAOYSA-N
SMILES
CC1=[N+](C2=C(C1(C)C)C3=CC=CC=C3C=C2)CCCCS(=O)(=O)[O-]
Synonyms (15)
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