Terazosin

Name: Terazosin
Brand: Vaqora Chemicals
SKU: VQ-044196

About Terazosin

Vaqora Chemicals supplies Terazosin, an impurity of Prazosin registered under CAS number 63590-64-7. Formula C19H25N5O4, molecular weight 387.4 g/mol. Systematically, it is named [4-(4-amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl]-(oxolan-2-yl)methanone. Alternative names: Terazosine and Fosfomic.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Pharmaceutical QC and development laboratories use this impurity standard of Prazosin to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

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

Industries

Related to Prazosin

View every impurity, metabolite and intermediate we list for Prazosin.

Prazosin impurities

Specifications & identifiers

Chemical identifiers
Product name	Terazosin
Catalogue No.	VQ-044196
CAS Number	63590-64-7
IUPAC name	[4-(4-amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl]-(oxolan-2-yl)methanone
Molecular formula	C₁₉H₂₅N₅O₄
Molecular weight	387.4 g/mol
Exact mass	387.1907
Grade	Reference Standard
HSN code	38229090
InChIKey	VCKUSRYTPJJLNI-UHFFFAOYSA-N
SMILES	COC1=C(C=C2C(=C1)C(=NC(=N2)N3CCN(CC3)C(=O)C4CCCO4)N)OC
PubChem CID	5401

Physical properties
Physical form	Solid
LogP (XLogP3)	1.4
H-bond donors / acceptors	1 / 8
TPSA	103 Å²
Synonyms	Terazosine, 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

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Terazosin?

The CAS Registry Number of Terazosin is 63590-64-7. It is also known as Terazosine, Fosfomic, Blavin.

What is the molecular formula and molecular weight of Terazosin?

Terazosin has the molecular formula C19H25N5O4 and a molecular weight of 387.4 g/mol. Its IUPAC name is [4-(4-amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl]-(oxolan-2-yl)methanone.

What is Terazosin used for?

Terazosin is supplied as a characterised reference material related to Prazosin. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Terazosin can I order?

We supply Terazosin in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Terazosin?

Yes. Every lot of Terazosin is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Terazosin be shipped internationally?

Yes. Terazosin is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.