2-Chloro-5-chlorosulfonyl-benzoic acid - ≥98% , CAS No.137-64-4

CAS: 137-64-4 Cat. No.: C181366 Molecular Weight: 255.1 EC Number: 205-303-3
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
EINECS 205-303-3 | 2-chloro-5-chlorosulfonyl benzoic acid | BS-13908 | DTXSID4059677 | NSC137839 | NSC-137839 | AB01450 | 2-Chloro-5-chlorosulphonylbenzoic acid | 2-chloro-5-chlorosulfonylbenzoic acid | 2-chloro-5-chlorosulfonyl-benzoic acid | 2-Chloro-5-
Storage
Store at -20°C,Argon charged
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
C181366-1g
5
$45.90
5g
C181366-5g
2
$156.90
25g
C181366-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$644.90
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.

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Storage & shipping

Store at -20°C,Argon charged Ships Ice chest + Ice pads 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.

Overview

2-Chloro-5-chlorosulfonylbenzoic Acid (cas# 137-64-4) is a compound useful in organic synthesis.

Specifications

Synonyms
EINECS 205-303-3 | 2-chloro-5-chlorosulfonyl benzoic acid | BS-13908 | DTXSID4059677 | NSC137839 | NSC-137839 | AB01450 | 2-Chloro-5-chlorosulphonylbenzoic acid | 2-chloro-5-chlorosulfonylbenzoic acid | 2-chloro-5-chlorosulfonyl-benzoic acid | 2-Chloro-5-
Specifications & Purity
≥98%
Storage
Store at -20°C, Argon charged
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Pubchem Sid488183924
Canonical SmilesC1=CC(=C(C=C1S(=O)(=O)Cl)C(=O)O)Cl
IUPAC Name2-chloro-5-chlorosulfonylbenzoic acid
InChIKeyCLHNTBSDCJLCKV-UHFFFAOYSA-N
INCHI1S/C7H4Cl2O4S/c8-6-2-1-4(14(9,12)13)3-5(6)7(10)11/h1-3H,(H,10,11)
Isomeric SMILES C1=CC(=C(C=C1S(=O)(=O)Cl)C(=O)O)Cl
Molecular Weight 255.1
Reaxy-Rn 2731903
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2731903&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.

View datasheet →

🔬 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
SubclassBenzenesulfonyl compounds
Intermediate Tree Nodes Benzenesulfonyl halides
Direct ParentBenzenesulfonyl chlorides
Alternative Parents 2-halobenzoic acids  Halobenzoic acids  Benzoic acids  1-carboxy-2-haloaromatic compounds  Benzoyl derivatives  Chlorobenzenes  Aryl chlorides  Vinylogous halides  Sulfonyls  Sulfonyl chlorides  Organosulfonic acids and derivatives  Monocarboxylic acids and derivatives  Organooxygen compounds  Organochlorides  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Benzenesulfonyl chloride - Halobenzoic acid - 2-halobenzoic acid - Halobenzoic acid or derivatives - 2-halobenzoic acid or derivatives - Benzoic acid or derivatives - Benzoic acid - 1-carboxy-2-haloaromatic compound - Benzoyl - Chlorobenzene - Halobenzene - Aryl chloride - Aryl halide - Vinylogous halide - Sulfonyl - Sulfonyl halide - Sulfonyl chloride - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Monocarboxylic acid or derivatives - Carboxylic acid - Carboxylic acid derivative - Hydrocarbon derivative - Organic oxide - Organohalogen compound - Organochloride - Organooxygen compound - Organosulfur compound - Organic oxygen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzenesulfonyl chlorides. These are aromatic compounds containing a benzenesulfonyl group, where the sulfonyl moiety is singly boned to a chloride atom.
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.

10 results found

Lot NumberCertificate TypeDateItem
B23071207Certificate of AnalysisOct 30, 2025 C181366
B23071227Certificate of AnalysisOct 30, 2025 C181366
B23071259Certificate of AnalysisOct 30, 2025 C181366
B23071264Certificate of AnalysisOct 30, 2025 C181366
C2512169Certificate of AnalysisMar 21, 2025 C181366
E2224043Certificate of AnalysisMar 03, 2025 C181366
E2224044Certificate of AnalysisMar 03, 2025 C181366
E2224045Certificate of AnalysisMar 03, 2025 C181366
B23071236Certificate of AnalysisFeb 14, 2023 C181366
C2512168Certificate of AnalysisFeb 14, 2023 C181366
Solution Calculators
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