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API Impurities

2-Amino-5-chlorobenzene sulfonic acid

Reference StandardAvailable on request

Buy 2-Amino-5-chlorobenzene sulfonic acid (CAS 133-74-4) from Zemixal. Lab and bulk packs, batch COA, fast global delivery.

Pack sizes
2-Amino-5-chlorobenzene sulfonic acid chemical structure
CAS number133-74-4
FormulaC6H6ClNO3S
Molar mass207.64 g/mol
Physical formSolid
HS code38229090
InChIKeyZCGVPUAAMCMLTM-UHFFFAOYSA-N
IUPAC name2-amino-5-chlorobenzenesulfonic acid

About 2-Amino-5-chlorobenzene sulfonic acid

2-Amino-5-chlorobenzene sulfonic acid belongs to the Diazoxide reference-standard family in the Zemixal catalogue. For your records (Reference Standard), the material is defined by CAS 133-74-4, formula C6H6ClNO3S and molar mass 207.64 g/mol. It is handled as a solid.

Typical applications

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Storage and safety notes

Classified under GHS with signal word Danger and hazard statements H314, H315, H319 and H335. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Each lot travels with a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Diazoxide

See every impurity, metabolite and related compound we list for this API.

Diazoxide standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Specifications and identifiers

Specifications of 2-Amino-5-chlorobenzene sulfonic acid
Product name2-Amino-5-chlorobenzene sulfonic acid
Catalogue numberZX-022431
CAS number133-74-4
IUPAC name2-amino-5-chlorobenzenesulfonic acid
Molecular formulaC6H6ClNO3S
Molar mass207.64 g/mol
Exact mass206.9757
GradeReference Standard
Physical formSolid
XLogP31.2
H-bond donors / acceptors2 / 4
Topological polar surface area88.8 Ų
HS code38229090
InChIKeyZCGVPUAAMCMLTM-UHFFFAOYSA-N
SMILESC1=CC(=C(C=C1Cl)S(=O)(=O)O)N
PubChem CID8628
Synonyms2-Amino-5-chlorobenzenesulphonic acid, 5-Chloroorthanilic acid, Benzenesulfonic acid, 2-amino-5-chloro-, 2-amino-5-chlorobenzene-1-sulfonic acid, p-Chloranilin-o-sulfosaure, 2-amino-5-chl, p-Chloroaniline-o-sulfonic acid, 1-Amino-4-chloro-2-benzenesulfonic acid

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS05 Corrosive
Corrosive
GHS07 Irritant or harmful
Irritant or harmful

Signal word Danger

  • H314Causes severe skin burns and eye damage
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P260, P261, P264, P264 + P265, P271, P280, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P319, P321, P332 + P317, P337 + P317, P362 + P364, P363, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 2-Amino-5-chlorobenzene sulfonic acid
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 2-Amino-5-chlorobenzene sulfonic acid

Which CAS number identifies 2-Amino-5-chlorobenzene sulfonic acid?
2-Amino-5-chlorobenzene sulfonic acid is registered under CAS 133-74-4. You may also see it listed as 2-Amino-5-chlorobenzenesulphonic acid, 5-Chloroorthanilic acid, Benzenesulfonic acid, 2-amino-5-chloro-. Our catalogue number for this item is ZX-022431.
What are the formula and molar mass of 2-Amino-5-chlorobenzene sulfonic acid?
For 2-Amino-5-chlorobenzene sulfonic acid, its formula is C6H6ClNO3S and its molar mass is 207.64 g/mol. The systematic (IUPAC) name is 2-amino-5-chlorobenzenesulfonic acid. InChIKey ZCGVPUAAMCMLTM-UHFFFAOYSA-N lets you match it in any structure database.
How is 2-Amino-5-chlorobenzene sulfonic acid used in pharmaceutical QC?
2-Amino-5-chlorobenzene sulfonic acid is a characterised reference material linked to Diazoxide. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for 2-Amino-5-chlorobenzene sulfonic acid?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with 2-Amino-5-chlorobenzene sulfonic acid?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship 2-Amino-5-chlorobenzene sulfonic acid to my country?
Yes. Because 2-Amino-5-chlorobenzene sulfonic acid is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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