2,3,3-Trimethyl-3H-indole-5-sulfonic acid

Modify Date: 2025-08-25 09:13:54

2,3,3-Trimethyl-3H-indole-5-sulfonic acid Structure
2,3,3-Trimethyl-3H-indole-5-sulfonic acid structure
Common Name 2,3,3-Trimethyl-3H-indole-5-sulfonic acid
CAS Number 132557-73-4 Molecular Weight 239.29100
Density 1.34g/cm3 Boiling Point N/A
Molecular Formula C11H13NO3S Melting Point 290-295ºC
MSDS N/A Flash Point N/A

 Names

Name 2,3,3-Trimethyl-3H-indole-5-sulfonic acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.34g/cm3
Melting Point 290-295ºC
Molecular Formula C11H13NO3S
Molecular Weight 239.29100
Exact Mass 239.06200
PSA 75.11000
LogP 2.83330
Index of Refraction 1.611

 Safety Information

HS Code 2933990090

 Customs

HS Code 2933990090
Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

5-Sulfo-2,3,3-Trimethylindolenine
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