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2,5-Dichlorobenzenesulfonic acid dihydrate

  • CAS No. 38484-94-5

  • Cat. No. CS-0157092
  • Molecule weight263.10
  • Purity≥95%
  • MDL No.MFCD08271971

*For research and further manufacturing use only, not for direct human use.

2,5-Dichlorobenzenesulfonic acid dihydrate|CS-0157092

Structure of 38484-94-5

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General Information

  • CAS No. 38484-94-5
  • Cat. No. CS-0157092
  • Purity ≥95%
  • MDL No. MFCD08271971
  • Storage Store at room temperature
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₆H₈Cl₂O₅S
  • Molecular Weight 263.10
  • Synonym(s) None
  • SMILES C1=CC(=C(C=C1Cl)S(=O)(=O)O)Cl.O.O

Description

2,5-Dichlorobenzenesulfonic acid dihydrate features two chlorine substituents at the 2 and 5 positions of the benzene ring, enhancing its electron-withdrawing character. The sulfonic acid group provides strong acidity and high water solubility, while the dihydrate form ensures improved stability during storage. This compound serves as a key intermediate in dye synthesis and functionalized aromatic derivatization under mild conditions.

Application

2,5-Dichlorobenzenesulfonic acid dihydrate serves as a robust sulfonation reagent and versatile building block in synthetic organic chemistry. Its dual chlorine substituents enhance electrophilic substitution reactivity, while the sulfonic acid group provides strong acidity and water solubility. The dihydrate form improves bench stability and simplifies handling, enabling reliable use in heterocycle synthesis, dye intermediates, and pharmaceutical scaffold construction under standard reaction conditions.

Safety Information

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GHS Pictogram :
GHS No : GHS05
Signal Word : Danger
UN#: 3261
Class : 8
Packing Group : Ⅲ
Hazard Statements : H302-H314
Precautionary Statements : P260-P264-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P363-P405-P501

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Computational Chemistry Data

  • TPSA   117.37
  • LogP   0.5907
  • H_Acceptors   2
  • H_Donors   1
  • Rotatable_Bonds   1

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