4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid

Also known as: 4-Amino-5-(ethylsulfonyl)-2-methoxybenzoic acid, 2-Methoxy-4-amino-5-ethylsulfonylbenzoic acid, 4-Amino-5-(ethylsulphonyl)-o-anisic acid, 4-Amino-5-ethanesulfonyl-2-methoxy-benzoic acid, Amisulpride Acid, Benzoic acid, 4-amino-5-(ethylsulfonyl)-2-methoxy-

4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid (CAS 71675-87-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H13NO5S and a molecular weight of 259.279 g/mol. Key properties include a melting point of 82-85ºC, a boiling point of 529.6±50.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 274.1±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 71675-87-1
Jingsj CID: J-1310196-7
Molecular Formula: C₁₀H₁₃NO₅S
Molecular Weight: 259.279 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	82-85ºC
Boiling Point	529.6±50.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	274.1±30.1 °C
Exact Mass	259.051453
PSA	115.07000
LogP	1.57
Vapor Pressure	0.0±1.5 mmHg at 25°C
Refractive Index	1.569
Storage Conditions	-20°C Freezer

Customs & Trade Information

HS Code	2922509090
Summary	2922509090. other amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid?

The CAS number of 4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid is 71675-87-1.

What are the molecular formula and molecular weight of 4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid?

4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid has molecular formula C10H13NO5S and molecular weight 259.279 g/mol.

What are the upstream and downstream products of 4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid?

For 4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid, Upstream Products: Methyl 4-amino-2-methoxybenzoate, 4-Aminosalicylic acid, methyl 4-amino-2-methoxy-5-thiocyanobenzoate; Downstream Products: Amisulpride, Triethylamine hydrochloride.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid (CAS 71675-87-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1310196-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.