2,5-Dichlorothiophene-3-sulfonyl chloride - ≥95% , CAS No.56946-83-9

CAS: 56946-83-9 Cat. No.: D185276 Molecular Weight: 251.54 EC Number: 625-984-4
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
2,5-Dichlorothiophene-3-sulfonic acid chloride | C4HCl3O2S2 | F16070 | 2,5-Dichlorothiophene-3-sulfonyl chloride | 2,5-Dichlorothiophene-3-sulfonylchloride | 2,5-dichloro-3-thiophenesulfonyl chloride | A831249 | SCHEMBL388032 | 2,5-dichlorothien-3-yl-sulf
Storage
Store at 2-8°C,Argon charged,Desiccated
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
D185276-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$27.90
5g
D185276-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$123.90
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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Argon charged,Desiccated Ships Wet ice Check lot-specific COA for exact specifications.

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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
2, 5-Dichlorothiophene-3-sulfonic acid chloride | C4HCl3O2S2 | F16070 | 2, 5-Dichlorothiophene-3-sulfonyl chloride | 2, 5-Dichlorothiophene-3-sulfonylchloride | 2, 5-dichloro-3-thiophenesulfonyl chloride | A831249 | SCHEMBL388032 | 2, 5-dichlorothien-3-yl-sulf
Specifications & Purity
≥95%
Storage
Store at 2-8°C, Argon charged, Desiccated
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥95%
Names and Identifiers
Canonical SmilesC1=C(SC(=C1S(=O)(=O)Cl)Cl)Cl
IUPAC Name2,5-dichlorothiophene-3-sulfonyl chloride
InChIKeyJJKSHSHZJOWSEC-UHFFFAOYSA-N
INCHI1S/C4HCl3O2S2/c5-3-1-2(4(6)10-3)11(7,8)9/h1H
Isomeric SMILES C1=C(SC(=C1S(=O)(=O)Cl)Cl)Cl
WGK Germany 3
Molecular Weight 251.54
Reaxy-Rn 1285315
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1285315&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.

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📊 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
SuperclassOrganoheterocyclic compounds
ClassThiophenes
Subclass2,3,5-trisubstituted thiophenes
Intermediate Tree Nodes Not available
Direct Parent2,3,5-trisubstituted thiophenes
Alternative Parents Aryl chlorides  Sulfonyls  Sulfonyl chlorides  Organosulfonic acids and derivatives  Heteroaromatic compounds  Organochlorides  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents 2,3,5-trisubstituted thiophene - Aryl chloride - Aryl halide - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Sulfonyl chloride - Sulfonyl halide - Sulfonyl - Heteroaromatic compound - Organic oxygen compound - Organic oxide - Organohalogen compound - Organochloride - Hydrocarbon derivative - Organosulfur compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as 2,3,5-trisubstituted thiophenes. These are organic compounds containing a thiophene that is trisubstituted at the C-2, C3- and C5-positions.
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.

1 results found

Lot NumberCertificate TypeDateItem
D2620289Certificate of AnalysisFeb 04, 2026 D185276
Chemical and Physical Properties
SensitivityMoisture sensitive
Flash Point(°F)230 °F
Flash Point(°C)110 °C
Molecular Weight251.500 g/mol
XLogP33.500
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count1
Exact Mass249.848 Da
Monoisotopic Mass249.848 Da
Topological Polar Surface Area70.800 Ų
Heavy Atom Count11
Formal Charge0
Complexity234.000
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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