4-Amino-5-(ethylsulfonyl)-2-methoxybenzoic Acid - ≥98% , CAS No.71675-87-1

CAS: 71675-87-1 Cat. No.: A151775 Molecular Weight: 259.28 EC Number: 275-833-8
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
4-Amino-5-(ethylsulphonyl)-o-anisic acid | GS-3369 | s11440 | 2-methoxy-4-amino-5-ethylsulphonyl benzoic acid | 4-azanyl-5-ethylsulfonyl-2-methoxy-benzoic acid | Amisulpride impurity (2-Methoxy-4-amino-5-ethylsulfonylbenzoic Acid) | 2-Methoxy-4-amino-5-et
Storage
Argon charged,Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
A151775-1g
3

$16.90

$25.90
Save $9.00 (34.75%)
5g
A151775-5g
7

$34.90

$52.90
Save $18.00 (34.03%)
25g
A151775-25g
1

$100.90

$151.90
Save $51.00 (33.57%)
100g
A151775-100g
1

$251.90

$377.90
Save $126.00 (33.34%)
Enter a quantity for the sizes you want to add.
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Argon charged,Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
4-Amino-5-(ethylsulphonyl)-o-anisic acid | GS-3369 | s11440 | 2-methoxy-4-amino-5-ethylsulphonyl benzoic acid | 4-azanyl-5-ethylsulfonyl-2-methoxy-benzoic acid | Amisulpride impurity (2-Methoxy-4-amino-5-ethylsulfonylbenzoic Acid) | 2-Methoxy-4-amino-5-et
Specifications & Purity
≥98%
Storage
Argon charged, Room temperature
Shipped In
Normal
Purity
≥98%
Names and Identifiers
Pubchem Sid504762319
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504762319
Canonical SmilesCCS(=O)(=O)C1=C(C=C(C(=C1)C(=O)O)OC)N
IUPAC Name4-amino-5-ethylsulfonyl-2-methoxybenzoic acid
InChIKeyOJVNCXHGGYYOPH-UHFFFAOYSA-N
INCHI1S/C10H13NO5S/c1-3-17(14,15)9-4-6(10(12)13)8(16-2)5-7(9)11/h4-5H,3,11H2,1-2H3,(H,12,13)
Isomeric SMILES CCS(=O)(=O)C1=C(C=C(C(=C1)C(=O)O)OC)N
Molecular Weight 259.28
Reaxy-Rn 2870064
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2870064&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzoic acids and derivatives
Intermediate Tree Nodes Methoxybenzoic acids and derivatives
Direct ParentO-methoxybenzoic acids and derivatives
Alternative Parents Aminobenzoic acids  Methoxyanilines  Aminophenyl ethers  Benzoic acids  Benzenesulfonyl compounds  Phenoxy compounds  Methoxybenzenes  Benzoyl derivatives  Anisoles  Alkyl aryl ethers  Sulfones  Amino acids  Carboxylic acids  Hydrocarbon derivatives  Organic oxides  Primary amines  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents O-methoxybenzoic acid or derivatives - Aminobenzoic acid - Aminobenzoic acid or derivatives - Aminophenyl ether - Benzoic acid - Benzenesulfonyl group - Methoxyaniline - Phenoxy compound - Anisole - Benzoyl - Phenol ether - Aniline or substituted anilines - Methoxybenzene - Alkyl aryl ether - Sulfonyl - Sulfone - Amino acid - Amino acid or derivatives - Carboxylic acid derivative - Carboxylic acid - Ether - Hydrocarbon derivative - Organonitrogen compound - Organic oxygen compound - Organooxygen compound - Organosulfur compound - Organic nitrogen compound - Amine - Primary amine - Organic oxide - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as o-methoxybenzoic acids and derivatives. These are benzoic acids in which the hydrogen atom at position 2 of the benzene ring is replaced by a methoxy group.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

6 results found

Lot NumberCertificate TypeDateItem
G2115157Certificate of AnalysisApr 03, 2025 A151775
G2115158Certificate of AnalysisApr 03, 2025 A151775
G2115159Certificate of AnalysisApr 03, 2025 A151775
G2115174Certificate of AnalysisApr 03, 2025 A151775
E2320298Certificate of AnalysisMay 24, 2021 A151775
E2320359Certificate of AnalysisMay 24, 2021 A151775
Chemical and Physical Properties
Solubilitysoluble in MeOH
SensitivityAir sensitive
Melt Point(°C)150 °C
Molecular Weight259.279 g/mol
XLogP31.200
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count6
Rotatable Bond Count4
Exact Mass259.051 Da
Monoisotopic Mass259.051 Da
Topological Polar Surface Area115.000 Ų
Heavy Atom Count17
Formal Charge0
Complexity375.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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