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Pharmacopeial Impurities (EP / USP / BP)

Chlorthalidone EP Impurity B

Reference StandardAvailable on request

Order Chlorthalidone EP Impurity B (CAS 5270-74-6) online at Zemixal. Request a quote with price, lead time and documents.

Pack sizes
Chlorthalidone EP Impurity B chemical structure
CAS number5270-74-6
FormulaC14H10ClNO5S
Molar mass339.8 g/mol
Physical formSolid
HS code38229090
InChIKeyUKRADWWBRBBJLZ-UHFFFAOYSA-N
IUPAC name2-(4-chloro-3-sulfamoylbenzoyl)benzoic acid

About Chlorthalidone EP Impurity B

Chlorthalidone EP Impurity B is supplied by Zemixal as a characterised reference material for Chlorthalidone analysis. Key data (Reference Standard): CAS 5270-74-6, formula C14H10ClNO5S and molar mass 339.8 g/mol. It is handled as a solid.

Typical applications

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Storage and safety notes

Classified under GHS with signal word Warning and hazard statements H302, H315, H319 and H335. Read the SDS before first use.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Chlorthalidone

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

Chlorthalidone standards

Typical uses

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Chlorthalidone EP Impurity B
Product nameChlorthalidone EP Impurity B
Catalogue numberZX-020195
CAS number5270-74-6
IUPAC name2-(4-chloro-3-sulfamoylbenzoyl)benzoic acid
Molecular formulaC14H10ClNO5S
Molar mass339.8 g/mol
Exact mass338.9968
GradeReference Standard
Physical formSolid
XLogP32
H-bond donors / acceptors2 / 6
Topological polar surface area123 Ų
HS code38229090
InChIKeyUKRADWWBRBBJLZ-UHFFFAOYSA-N
SMILESC1=CC=C(C(=C1)C(=O)C2=CC(=C(C=C2)Cl)S(=O)(=O)N)C(=O)O
PubChem CID78924
SynonymsChlortalidone EP Impurity B, Chlorthalidone EP Impurity B/ chlorthalidone USP rc a, Chlortalidone - Impurity B, Chlorthalidone Impurity B, 2-(4-Chloro-3-sulphamoylbenzoyl)benzoic acid, 2-[3-(Aminosulfonyl)-4-chlorobenzoyl]benzoic acid, 4'-Chloro-3'-sulfamoyl-2-benzophenone carboxylic acid, Benzoic acid, 2-(3-(aminosulfonyl)-4-chlorobenzoyl)-, Benzoic acid, 2-[3-(aminosulfonyl)-4-chlorobenzoyl]-, Chlorthalidone impurity, Chlorthalidone Impurity A, 2-[3-(Aminosulfonyl)-4-chlorobenzoyl]-benzonic Acid

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, 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 Chlorthalidone EP Impurity B
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 Chlorthalidone EP Impurity B

Which CAS number identifies Chlorthalidone EP Impurity B?
Chlorthalidone EP Impurity B is registered under CAS 5270-74-6. You may also see it listed as Chlortalidone EP Impurity B, Chlorthalidone EP Impurity B/ chlorthalidone USP rc a, Chlortalidone - Impurity B. Our catalogue number for this item is ZX-020195.
What are the formula and molar mass of Chlorthalidone EP Impurity B?
For Chlorthalidone EP Impurity B, its formula is C14H10ClNO5S and its molar mass is 339.8 g/mol. The systematic (IUPAC) name is 2-(4-chloro-3-sulfamoylbenzoyl)benzoic acid. InChIKey UKRADWWBRBBJLZ-UHFFFAOYSA-N lets you match it in any structure database.
How is Chlorthalidone EP Impurity B used in pharmaceutical QC?
Chlorthalidone EP Impurity B is a characterised reference material linked to Chlorthalidone. 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 Chlorthalidone EP Impurity B?
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 Chlorthalidone EP Impurity B?
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 Chlorthalidone EP Impurity B to my country?
Yes. Because Chlorthalidone EP Impurity B 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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