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4-Chloroaniline-3-sulfonic acid (PCS)

4-Chloroaniline-3-sulfonic acid (PCS)

CAS Number: 88-43-7

Molecular Formula: C6H6ClNO3S

About 4-Chloroaniline-3-sulfonic acid (PCS)

2-Amino-5-chlorobenzenesulfonic acid (CAS 88-74-4) serves as a critical high purity fine chemical intermediate for the synthesis of high-performance pigments and pharmaceutical sulfonamides, with U.S. demand increasingly driven by CDMOs requiring stringent impurity profiles to ensure regulatory compliance. 4-Amino-6-ch...

4-Chloroaniline-3-sulfonic acid (PCS) Specifications

CAS Number
88-43-7
Molecular Formula
C6H6ClNO3S
Molecular Weight
207.63 g/mol
IUPAC Name
5-amino-2-chlorobenzenesulfonic acid
Canonical SMILES
Nc1ccc(Cl)c(S(=O)(=O)O)c1
InChI Key
VPXCXBHLKDPWQV-UHFFFAOYSA-N
Molecular Weight
207.63 g/mol

Dye and Pigment Intermediate

A versatile chemical intermediate primarily utilized in the synthesis of specialized colorants such as Pigment Red 58 and various organic pigments for the textile and printing industries

Organic Synthesis Building Block

A functionalized aniline derivative used as a critical starting material in academic and industrial research for the development of complex nitrogen-containing molecules and sulfonated organic compounds

Pesticide Intermediate

A functionalized benzene derivative employed as a precursor in the production of insecticides and agrochemical products.

4-Chloroaniline-3-sulfonic acid (PCS) FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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