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Pharmacopeial Impurities (EP / USP / BP)

Metolazone EP Impurity B

Reference StandardAvailable on request

Buy Metolazone EP Impurity B (CAS 28508-63-6) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes
Metolazone EP Impurity B chemical structure
CAS number28508-63-6
FormulaC16H16ClN3O3S
Molar mass365.8 g/mol
Physical formSolid
HS code38229090
InChIKeyOZRXBEQHWXLTOR-UHFFFAOYSA-N
IUPAC name7-chloro-2-methyl-3-(4-methylphenyl)-4-oxo-1,2-dihydroquinazoline-6-sulfonamide

About Metolazone EP Impurity B

Zemixal lists Metolazone EP Impurity B for laboratories that identify, quantify or control Metolazone and its related substances. For your records (Reference Standard), the material is defined by CAS 28508-63-6, formula C16H16ClN3O3S and molar mass 365.8 g/mol. It is handled as a solid.

Typical applications

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

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Metolazone

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

Metolazone standards

Typical uses

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

Applications

Grade guides

Specifications and identifiers

Specifications of Metolazone EP Impurity B
Product nameMetolazone EP Impurity B
Catalogue numberZX-022141
CAS number28508-63-6
IUPAC name7-chloro-2-methyl-3-(4-methylphenyl)-4-oxo-1,2-dihydroquinazoline-6-sulfonamide
Molecular formulaC16H16ClN3O3S
Molar mass365.8 g/mol
Exact mass365.0601
GradeReference Standard
Physical formSolid
XLogP34.1
H-bond donors / acceptors2 / 5
Topological polar surface area101 Ų
HS code38229090
InChIKeyOZRXBEQHWXLTOR-UHFFFAOYSA-N
SMILESCC1NC2=CC(=C(C=C2C(=O)N1C3=CC=C(C=C3)C)S(=O)(=O)N)Cl
PubChem CID71737791
Synonymspara-Metolazone, Metolazone - Impurity B, p-Metolazone, 4'-Metolazone, (+/-)-Para-metolazone, 2'-Desmethyl-4'-methylmetolazone, 6-Quinazolinesulfonamide, 7-chloro-1,2,3,4-tetrahydro-2-methyl-3-(4-methylphenyl)-4-oxo-, N-Des(o-tolyl)-N-(p-tolyl) Metolazone, Metolazone Impurity D, 7-Chloro-2-methyl-4-oxo-3-(p-tolyl)-1,2,3,4-tetrahydroquinazoline-6-sulfonamide

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

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Metolazone 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 Metolazone EP Impurity B

Which CAS number identifies Metolazone EP Impurity B?
Metolazone EP Impurity B is registered under CAS 28508-63-6. You may also see it listed as para-Metolazone, Metolazone - Impurity B, p-Metolazone. Our catalogue number for this item is ZX-022141.
What are the formula and molar mass of Metolazone EP Impurity B?
For Metolazone EP Impurity B, its formula is C16H16ClN3O3S and its molar mass is 365.8 g/mol. The systematic (IUPAC) name is 7-chloro-2-methyl-3-(4-methylphenyl)-4-oxo-1,2-dihydroquinazoline-6-sulfonamide. InChIKey OZRXBEQHWXLTOR-UHFFFAOYSA-N lets you match it in any structure database.
How is Metolazone EP Impurity B used in pharmaceutical QC?
Metolazone EP Impurity B is a characterised reference material linked to Metolazone. 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 Metolazone 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 Metolazone 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 Metolazone EP Impurity B to my country?
Yes. Metolazone EP Impurity B ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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