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3,5-Dichloro-2-hydroxybenzenesulfonyl chloride_Molecular_structure_CAS_23378-88-3)
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3,5-Dichloro-2-hydroxybenzenesulfonyl chloride

Catalog No. L12147 Name Alfa Aesar
CAS Number 23378-88-3 Website
M. F. C6H3Cl3O3S Telephone
M. W. 261.51022 Fax
Purity 97% Email
Storage Chembase ID: 146176

SYNONYMS

Title
3,5-二氯-2-羟基苯磺酰氯
IUPAC name
3,5-dichloro-2-hydroxybenzene-1-sulfonyl chloride
IUPAC Traditional name
3,5-dichloro-2-hydroxybenzenesulfonyl chloride

DATABASE IDS

Beilstein Number 2940993
EC Number 245-619-9
CAS Number 23378-88-3
MDL Number MFCD00007432

PROPERTIES

GHS Pictograms GHS05
GHS Hazard statements H314-H318
European Hazard Symbols Corrosive Corrosive (C)
GHS Precautionary statements P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501A
Risk Statements 34
Safety Statements 26-36/37/39-45
Storage Warning Moisture Sensitive
TSCA Listed
Hazard Class 8
UN Number UN3261
Packing Group III
Purity 97%
Melting Point 78-80°C

DETAILS

REFERENCES

  • Reagent for peptide coupling with low racemization: Tetrahedron Lett., 35, 9561 (1994). See Appendix 6. Reaction is thought to proceed via an o-thioquinone S,S-dioxide, leading to a carboxylic sulfonic mixed anhydride which rearranges to an active ester: