S3I-201

NSC 74859

Also known as: 2-Hydroxy-4-[({[(4-methylphenyl)sulfonyl]oxy}acetyl)amino]benzoic acid, 2-Hydroxy-4-[[2-[[(4-methylphenyl)sulfonyl]oxy]acetyl]amino]benzoic acid, 2-Hydroxy-4-[[[[(4-methylphenyl)sulfonyl]oxy]acetyl]amino]-benzoic acid, 2-hydroxy-4-(2-(tosyloxy)acetaMido)benzoic acid, 2-hydroxy-4-(2-(tosyloxy)acetamido)benzoic acid, 2-hydroxy-4-[[2-(4-methylphenyl)sulfonyloxyacetyl]amino]benzoic acid, Benzoic acid, 2-hydroxy-4-[[2-[[(4-methylphenyl)sulfonyl]oxy]acetyl]amino]-, NSC 74859 (S3I-201), S2I-201, S31-201, S3I-201 (NSC 74859)

S3I-201 (CAS 501919-59-1) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C16H15NO7S and a molecular weight of 365.358 g/mol. It is also known as 2-Hydroxy-4-[({[(4-methylphenyl)sulfonyl]oxy}acetyl)amino]benzoic acid, 2-Hydroxy-4-[[2-[[(4-methylphenyl)sulfonyl]oxy]acetyl]amino]benzoic acid and 2-Hydroxy-4-[[[[(4-methylphenyl)sulfonyl]oxy]acetyl]amino]-benzoic acid. Key properties include a boiling point of 654.7±55.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 349.8±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
501919-59-1
Jingsj CID
J-1977983-4
Molecular Formula
C16H15NO7S
Chinese Name
NSC 74859
Molecular Weight
365.358 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point654.7±55.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point349.8±31.5 °C

Frequently Asked Questions

What is the CAS number of S3I-201?

The CAS number of S3I-201 is 501919-59-1.

What are the molecular formula and molecular weight of S3I-201?

S3I-201 has molecular formula C16H15NO7S and molecular weight 365.358 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "S3I-201 (CAS 501919-59-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1977983-4 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.