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API Impurities

Terazosin

Reference StandardAvailable on request

Order Terazosin (CAS 63590-64-7) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-036715.

Pack sizes
Terazosin chemical structure
CAS number63590-64-7
FormulaC19H25N5O4
Molar mass387.4 g/mol
Physical formSolid
HS code38229090
InChIKeyVCKUSRYTPJJLNI-UHFFFAOYSA-N
IUPAC name[4-(4-amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl]-(oxolan-2-yl)methanone

About Terazosin

Terazosin belongs to the Prazosin reference-standard family in the Zemixal catalogue. For your records (Reference Standard), the material is defined by CAS 63590-64-7, formula C19H25N5O4 and molar mass 387.4 g/mol. It is handled as a solid.

Where it is used

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

Handling and storage

Hazard communication follows GHS (Warning: H302). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. 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 Prazosin

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

Prazosin standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of Terazosin
Product nameTerazosin
Catalogue numberZX-036715
CAS number63590-64-7
IUPAC name[4-(4-amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl]-(oxolan-2-yl)methanone
Molecular formulaC19H25N5O4
Molar mass387.4 g/mol
Exact mass387.1907
GradeReference Standard
Physical formSolid
XLogP31.4
H-bond donors / acceptors1 / 8
Topological polar surface area103 Ų
HS code38229090
InChIKeyVCKUSRYTPJJLNI-UHFFFAOYSA-N
SMILESCOC1=C(C=C2C(=C1)C(=NC(=N2)N3CCN(CC3)C(=O)C4CCCO4)N)OC
PubChem CID5401
SynonymsTerazosine, Fosfomic, Blavin, 1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-((tetrahydro-2-furanyl)carbonyl)piperazine, Piperazine, 1-(4-amino-6,7-dimethoxy-2-quinazolinyl)-4-((tetrahydro-2-furanyl)carbonyl)-, 6,7-dimethoxy-2-(4-((oxolan-2-yl)carbonyl)piperazin-1-yl)quinazolin-4-amine, 6,7-dimethoxy-2-(4-(oxolane-2-carbonyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-imine, 6,7-dimethoxy-2-[4-(oxolane-2-carbonyl)piperazin-1-yl]-3,4-dihydroquinazolin-4-imine, 6,7-dimethoxy-2-{4-[(oxolan-2-yl)carbonyl]piperazin-1-yl}quinazolin-4-amine, terazosin, monohydrochloride, dihydrate, Hytrin, 1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-(tetrahydro-2-furoyl)piperazine

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

Precautionary statements P264, P270, P301 + P317, P330, 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 Terazosin
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

Which CAS number identifies Terazosin?
Terazosin is registered under CAS 63590-64-7. You may also see it listed as Terazosine, Fosfomic, Blavin. Our catalogue number for this item is ZX-036715.
What are the formula and molar mass of Terazosin?
For Terazosin, its formula is C19H25N5O4 and its molar mass is 387.4 g/mol. The systematic (IUPAC) name is [4-(4-amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl]-(oxolan-2-yl)methanone. InChIKey VCKUSRYTPJJLNI-UHFFFAOYSA-N lets you match it in any structure database.
How is Terazosin used in pharmaceutical QC?
Terazosin is a characterised reference material linked to Prazosin. 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?
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?
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 to my country?
Yes. Because Terazosin 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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