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4,4’ - Dichloro Diphenyl Sulfone

CAS Number : [98-09-9]
Molecular Formula : C12H8O2SCl2
  • Intermediate for DAPSONE
  • Monomer in engineering polymers

Benzene Sulfonamide

CAS Number : [98-10-2]
Molecular Formula : C6H7NO2S
  • Intermediate in Organic synthesis, pharmaceuticals, dyes, plasticizers and fungicides
  • Esterification catalyst and corrosion inhibitor
  • In electroplating and latex industries
  • Raw material for production of blowing agents & pesticides

Benzene Sulfonic Acid

CAS Number : [98-11-3]
Molecular Formula : C6H6O3S
  • Intermediates in Dyes, Pharma, Agrochemicals
  • Catalyst for esterification reactions

Benzene Sulfonyl Chloride

CAS Number : [98-09-9]
Molecular Formula : C6H5SO2CI
  • Starting material for Violet 23 & cobalt phthalocyanine dye
  • Intermediate for agro chemicals  viz. insecticides
  • In manufacture of Benzene Sulfonamide, surface active agents, sulfa drugs, esters by dehydration for perfumery products, lubricating oil additives
  • Promoter in low hysteresis processing of carbon black rubber mixes
  • Improvements in the production of polymerisation products using halogen compounds to increase the effectiveness of sulfonation during polymerisation
  • Catalyst in furan resins
  • Brightening additive for nickel electroplating

Diethyl Ether

CAS Number : [60-29-7]
Molecular Formula : C4H10O
  • In ink manufacturing
  • Solvent in pharmaceutical industries

Diethyl Sulfate

CAS Number : [64-67-5]
Molecular Formula : (C2H5 )2SO4
  • Ethylating agent in the manufacture of aromatic and aliphatic ethers, amines, amides, esters and imides carbozole for dyestuff, pharmaceutical and flavour synthesis
  • Hardener for cresol formaldehyde resin manufacture
  • Stabilizer for organophosphrous insecticide


CAS Number : [2736-23-4]
Molecular Formula : C7H5Cl2NO4S
  • Intermediate for the manufacture of Frusemide which is used as a diuretic and anti-hypertensive

Methane Sulphonic Anhydride

CAS Number : [7143-01-3]
Molecular Formula : (CH3SO2)2O
  • Powerful Sulfonylating reagent
  • Primary and Secondary alcohols are oxidized to carbonyl compounds by Methane Sulphonic Anhydride in DMSO
  • In preparation of mesylates
  • In manufacture of Dorzolamide

Methyl Ester Of Benzenesulfonic Acid

CAS Number : [80-18-2]
Molecular Formula : C7H8O3S
  • Intermediate for analgesic drugs
  • Important trans methylating agent. Selective methylation where Dimethyl Sulfate cannot be used because of reactivity

Methyl Para-Tolunesulfonate

CAS Number : [80-48-8]
Molecular Formula : C8H10O3S
  • Raw material for dyes and organic synthesis
  • Methylating agent 

Para-Chloro Benzene Sulfonic Acid

CAS Number : [98-66-8]
Molecular Formula : C6H5ClO3S
  • Intermediate for drugs, dyestuff, pesticides, agrochemicals and surfactants
  • Catalyst for esterification reactions

Para-Chloro Benzene Sulfonyl Chloride

CAS Number : [98-60-2]
Molecular Formula : C6H4Cl2O2S
  • Intermediate in drug synthesis
  • Intermediate for pesticides
  • Intermediate in synthesis of dyestuffs
  • Intermediate in the synthesis of polyether-sulfones monomers
  • Starting material for p-chlorothiophenol
  • In anti-hypertensive drug clopidogrel

Para-Nitrobenzene Sulfonyl Chloride

CAS Number : [98-74-8]
Molecular Formula : C6H4ClNO4S
  • Intermediates for fosamprenavir, Darunavir, Amprenavir, Ramipril, Saquinavir, Tolterodine & Asulam. Benizipril
  • Intermediate for hypertension and kidney diseases

p-Chloro Thiophenol (4-Chlorothiophenol)

CAS Number : [106-54-7]
Molecular Formula : C6H5ClS
  • As an intermediate for Pharma, pesticide, dyes and insecticides

Sodium P-Chloro Benzene Sulfonate

CAS Number : [5138-90-9]
Molecular Formula : C6H4ClNaO3S
  • Intermediate for dyes, drugs, insecticides and pesticides

Sodium Phenol Sulfonate

CAS Number : [1300-51-2]
Molecular Formula : C6H5NaO4S.2H20
  • Intermediate for alkanoyloxybenzene sulfonates 
  • Dusting powders for ulcers, slowly granulating wounds 

Thiophenol (Benzenethiol)

CAS Number : [108-98-5]
Molecular Formula : C6H6S
  • In Chemicals, Pharmaceuticals and dyes industries