Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2,3,3-Trimethyl-3H-indole-5-sulfonic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,3,3-trimethyl-3H-indole-5-sulfonic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

132557-73-4

132557-73-4 structure

132557-73-4 structure

Name: 2,3,3-Trimethyl-3H-indole-5-sulfonic acid
Chemical Name: 2,3,3-Trimethyl-3H-indole-5-sulfonic acid
CAS Number: 132557-73-4
Molecular Formula: C₁₁H₁₃NO₃S
Molecular Weight: 239.29100
Create Date: 2018-10-11 20:45:18
Modify Date: 2025-08-25 09:13:54

Name	2,3,3-Trimethyl-3H-indole-5-sulfonic acid
Synonyms	5-Sulfo-2,3,3-Trimethylindolenine

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

HS Code	2933990090

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%

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