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Pharmacopeial Impurities (EP / USP / BP)

Terazosin EP Impurity B

Reference StandardAvailable on request

Terazosin EP Impurity B (CAS 1177261-73-2) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-027167.

Pack sizes
Terazosin EP Impurity B chemical structure
CAS number1177261-73-2
FormulaC19H24N4O5
Molar mass388.4 g/mol
Physical formSolid
HS code38229090
InChIKeySOPCVLMNPKFJKQ-UHFFFAOYSA-N
IUPAC name6,7-dimethoxy-2-[4-(oxolane-2-carbonyl)piperazin-1-yl]-3H-quinazolin-4-one

About Terazosin EP Impurity B

Terazosin EP Impurity B is supplied by Zemixal as a characterised reference material for Terazosin analysis. For your records (Reference Standard), the material is defined by CAS 1177261-73-2, formula C19H24N4O5 and molar mass 388.4 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 H319. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Terazosin

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

Terazosin 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 Terazosin EP Impurity B
Product nameTerazosin EP Impurity B
Catalogue numberZX-027167
CAS number1177261-73-2
IUPAC name6,7-dimethoxy-2-[4-(oxolane-2-carbonyl)piperazin-1-yl]-3H-quinazolin-4-one
Molecular formulaC19H24N4O5
Molar mass388.4 g/mol
Exact mass388.1747
GradeReference Standard
Physical formSolid
XLogP30.3
H-bond donors / acceptors1 / 6
Topological polar surface area92.7 Ų
HS code38229090
InChIKeySOPCVLMNPKFJKQ-UHFFFAOYSA-N
SMILESCOC1=C(C=C2C(=C1)C(=O)NC(=N2)N3CCN(CC3)C(=O)C4CCCO4)OC
PubChem CID136276642
SynonymsTerazosin Hydrochloride Dihydrate - Impurity B, Desamino hydroxy terazosin, 4(3H)-Quinazolinone, 6,7-dimethoxy-2-(4-((tetrahydro-2-furanyl)carbonyl)-1-piperazinyl)-, Terazosin hydrochloride dihydrate specified impurity B, 6,7-Dimethoxy-2-(4-(tetrahydrofuran-2-carbonyl)piperazin-1-yl)quinazolin-4(1H)-one, Terazosin Impurity B, 6,7-dimethoxy-2-[4-(oxolane-2-carbonyl)piperazin-1-yl]-1,4-dihydroquinazolin-4-one, Terazosin hydrochloride dihydrate impurity B, 6,7-Dimethoxy-2-[4-[(tetrahydro-2-furanyl)carbonyl]-1-piperazinyl]-4(3H)-quinazolinone

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

  • H319Causes serious eye irritation

Precautionary statements P264 + P265, P280, P305 + P351 + P338, P337 + P317

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 Terazosin 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 Terazosin EP Impurity B

Which CAS number identifies Terazosin EP Impurity B?
Terazosin EP Impurity B is registered under CAS 1177261-73-2. You may also see it listed as Terazosin Hydrochloride Dihydrate - Impurity B, Desamino hydroxy terazosin, 4(3H)-Quinazolinone, 6,7-dimethoxy-2-(4-((tetrahydro-2-furanyl)carbonyl)-1-piperazinyl)-. Our catalogue number for this item is ZX-027167.
What are the formula and molar mass of Terazosin EP Impurity B?
For Terazosin EP Impurity B, its formula is C19H24N4O5 and its molar mass is 388.4 g/mol. The systematic (IUPAC) name is 6,7-dimethoxy-2-[4-(oxolane-2-carbonyl)piperazin-1-yl]-3H-quinazolin-4-one. InChIKey SOPCVLMNPKFJKQ-UHFFFAOYSA-N lets you match it in any structure database.
How is Terazosin EP Impurity B used in pharmaceutical QC?
Terazosin EP Impurity B is a characterised reference material linked to Terazosin. 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 Terazosin 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 Terazosin 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 Terazosin EP Impurity B to my country?
Yes. Because Terazosin 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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