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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 2773527Generated: October 23, 2026

5-Chloro-2,4-difluorobenzenesulphonyl chloride

BUTTPARK 25\07-37 · 5-Chloro-2,4-difluorobenzenesulphonylchlo · 5-Chloro-2,4-difluorophenylsulfonyl chloride · 5-chloro-2,4-difluoro benzensulfonylchloride · 5-Chlro-2,4-Difluorobenzenesulfonyl Chloride · 3-Chloro-4,6-difluorobenzenesulfonyl chloride · 5-Chloro-2,4-difluorobenzenesulfonyl chloride · 5-CHLORO-2,4-DIFLUOROBENZENESULPHONYL CHLORIDE

https://huagongshe.com/en/chemical/2773527

5-Chloro-2,4-difluorobenzenesulphonyl chloride molecular structure

Identifiers & Physical Properties

CAS No.13656-57-0
Molecular formulaC6H2Cl2F2O2S
Average molar mass247.05 g/mol
Monoisotopic mass245.9120621 g/mol
SMILESO=S(=O)(Cl)c1cc(Cl)c(F)cc1F
InChIKeyXMNXVDULKLCZFG-UHFFFAOYSA-N
PubChem CID2773527
EC No.638-922-6
DTXSIDDTXSID70378526

Chemical & Physical Properties

XLogP2.8
Topological polar surface area42.5
Hydrogen bond donors0
Hydrogen bond acceptors4
Rotatable bonds1
Heavy atoms13
Formal charge0
Complexity277
SpringerMaterials PropertiesNuclear quadrupole resonance spectroscopy
Melting point44-45°
Boiling point289℃
Density1.686
Flash point129℃
Storage conditionsunder inert gas (nitrogen or Argon) at 2-8°C
Physical statecrystalline solid
ColorWhite to off-white
InChIInChI=1S/C6H2Cl2F2O2S/c7-3-1-6(13(8,11)12)5(10)2-4(3)9/h1-2H
InChIKeyXMNXVDULKLCZFG-UHFFFAOYSA-N
SMILESC1(S(Cl)(=O)=O)=CC(Cl)=C(F)C=C1F
CAS DataBase Reference13656-57-0(CAS DataBase Reference)
UNSPSC Code12352200
NACRESNA.21
GHS pictogramGHS05
Signal wordDanger
GHS hazard statementsH314
GHS precautionary statementsP260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501
Hazard symbolsC
Risk statements (R)34
Safety statements (S)26-36/37/39
UN transport number3261
Water hazard class (WGK)WGK 3
Hazard classCORROSIVE
Customs code2904990090
Storage class11 - Combustible Solids
Limited quantities5.0 kg (11 lbs) (solid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

Safety & Regulations

GHS classificationDangerH314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]P260, P261, P264, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P319, P321, P363, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 6 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesSkin Corr. 1B (100%)
Water hazard class (WGK)WGK 3
UN transport number3261
Customs code2904990090
Risk statements (R)34
Signal wordDanger
GHS pictogramGHS05
Hazard symbolsC
Safety statements (S)26-36/37/39
Hazard classCORROSIVE
Storage class11 - Combustible Solids
GHS hazard statementsH314
Limited quantities5.0 kg (11 lbs) (solid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
GHS precautionary statementsP260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501