4-Amino-6,7-dimethoxyquinazolin-2(1H)-one

Name: 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one
Brand: Vaqora Chemicals
SKU: VQ-036800

About 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one

4-Amino-6,7-dimethoxyquinazolin-2(1H)-one is an impurity of Doxazosin carrying the CAS registry number 664347-52-8. Its molecular formula is C10H11N3O3 and its molecular weight is 221.21 g/mol. Systematically, it is named 4-amino-6,7-dimethoxy-1H-quinazolin-2-one. Common synonyms include 4-amino-6,7-dimethoxy-2-quinazolinol and 4-amino-6,7-dimethoxyquinazolin-2-ol.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

As a characterised impurity of Doxazosin, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Doxazosin

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

Doxazosin impurities

Specifications & identifiers

Chemical identifiers
Product name	4-Amino-6,7-dimethoxyquinazolin-2(1H)-one
Catalogue No.	VQ-036800
CAS Number	664347-52-8
IUPAC name	4-amino-6,7-dimethoxy-1H-quinazolin-2-one
Molecular formula	C₁₀H₁₁N₃O₃
Molecular weight	221.21 g/mol
Exact mass	221.08
Grade	Reference Standard
HSN code	38229090
InChIKey	VDKRBBSKYHISKZ-UHFFFAOYSA-N
SMILES	COC1=C(C=C2C(=C1)C(=NC(=O)N2)N)OC
PubChem CID	63330

Physical properties
Physical form	Solid
LogP (XLogP3)	0.1
H-bond donors / acceptors	2 / 3
TPSA	85.9 Å²

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 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one?

The CAS Registry Number of 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one is 664347-52-8. It is also known as 4-amino-6,7-dimethoxy-2-quinazolinol, 4-amino-6,7-dimethoxyquinazolin-2-ol, 4-Amino-6,7-dimethoxy-1,2-dihydroquinazolin-2-one.

What is the molecular formula and molecular weight of 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one?

4-Amino-6,7-dimethoxyquinazolin-2(1H)-one has the molecular formula C10H11N3O3 and a molecular weight of 221.21 g/mol. Its IUPAC name is 4-amino-6,7-dimethoxy-1H-quinazolin-2-one.

What is 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one used for?

4-Amino-6,7-dimethoxyquinazolin-2(1H)-one is supplied as a characterised reference material related to Doxazosin. 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 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one can I order?

We supply 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one 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 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one?

Yes. Every lot of 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one 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 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one be shipped internationally?

Yes. We export 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.