5-Sulfo-2,3,3-trimethyl indolenine

5-Sulfo-2,3,3-trimethyl indolenine - Names and Identifiers

Name	2,3,3-Trimethyl-3H-indole-5-sulfonic acid
Synonyms	137392 5-Sulfo-2,3,3-Trimethylindolenine 5-Sulfo-2,3,3-trimethyl indolenine 2,3,3-trimethylindole-5-sulfonic acid 2,3,3-trimethyl-5-indolesulfonic acid 2,3,3-Trimethyl-3H-indole-5-sulfonic acid 3H-Indole-5-sulfonicacid, 2,3,3-trimethyl- 3H-Indole-5-sulfonic acid, 2,3,3-trimethyl- Sodium 2,3,3-trimethyl-3H-indole-5-sulfonate 5-Sulfo-2,3,3-trimethyl indolenine sodium salt
CAS	132557-72-3 132557-73-4
InChI	InChI=1S/C11H13NO3S/c1-7-11(2,3)9-6-8(16(13,14)15)4-5-10(9)12-7/h4-6H,1-3H3,(H,13,14,15)

5-Sulfo-2,3,3-trimethyl indolenine - Physico-chemical Properties

Molecular Formula	C11H13NO3S
Molar Mass	239.29
Density	1.34
Melting Point	290-295℃
pKa	-1.45±0.60(Predicted)
Storage Condition	Keep in dark place,Sealed in dry,Room Temperature
Refractive Index	1.611

5-Sulfo-2,3,3-trimethyl indolenine - Introduction

2,3, 3-Trimethyl-3H-indole-5-sulfonic acid (TMA-5 for short) is an organic compound whose chemical formula is C14H17NO3S.

Nature:
TMA-5 appears as a white crystalline solid, soluble in water and organic solvents. It is a strongly acidic compound that produces acidity in aqueous solution.

Use:
TMA-5 are mainly used in the field of chemical research and are often used as catalysts or reagents in organic synthesis. It can also be used in the synthesis of other indole compounds.

Preparation Method:
The preparation method of TMA-5 can be obtained by sulfonation reaction of indole. One common method is the reaction of indole with sulfonyl chloride to form TMA-5.

Safety Information:
TMA-5 need to pay attention to safety measures during operation and storage to avoid direct contact with skin and eyes. Appropriate protective equipment such as lab gloves, goggles and protective clothing shall be provided for use. In addition, it should be used in a well-ventilated environment and avoid inhaling its gas or mist. For easily combustible compounds, contact with them should be avoided to avoid fire. When handling or disposing of waste, follow local chemical waste disposal regulations.

Last Update：2024-04-10 22:29:15