6,7-dimethoxy-2-(piperazin-1-yl)quinazolin-4-amine

Also known as: 2-(piperazin-1-yl)-4-amino-6,7-dimethoxyquinazoline, 6,7-dimethoxy-2-(1-piperazinyl)quinazolin-4-amine, 2-piperazinyl-4-amino-6,7-dimethoxyquinazoline, 2-piperazin-1-yl-4-amino-6,7-dimethoxyquinazoline, Prazosin Impurity 3, Prazosin EP Impurity C, Terazosin Impurity C, Terazosin EP Impurity C

6,7-dimethoxy-2-(piperazin-1-yl)quinazolin-4-amine (CAS 60547-97-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C14H19N5O2 and a molecular weight of 289.33300 g/mol. Key properties include a melting point of 219-221ºC (dec.), a boiling point of 527ºC at 760 mmHg, a density of 1.265 g/cm3 and a flash point of 272.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 60547-97-9
Jingsj CID: J-1498781-6
Molecular Formula: C₁₄H₁₉N₅O₂
Molecular Weight: 289.33300 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	219-221ºC (dec.)
Boiling Point	527ºC at 760 mmHg
Density	1.265 g/cm3
Flash Point	272.5ºC
Exact Mass	289.15400
PSA	85.53000
LogP	1.61380
Refractive Index	1.63
Storage Conditions	Refrigerator

Customs & Trade Information

HS Code	2933499090
Summary	2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 6,7-dimethoxy-2-(piperazin-1-yl)quinazolin-4-amine?

The CAS number of 6,7-dimethoxy-2-(piperazin-1-yl)quinazolin-4-amine is 60547-97-9.

What are the molecular formula and molecular weight of 6,7-dimethoxy-2-(piperazin-1-yl)quinazolin-4-amine?

6,7-dimethoxy-2-(piperazin-1-yl)quinazolin-4-amine has molecular formula C14H19N5O2 and molecular weight 289.33300 g/mol.

What are the upstream and downstream products of 6,7-dimethoxy-2-(piperazin-1-yl)quinazolin-4-amine?

For 6,7-dimethoxy-2-(piperazin-1-yl)quinazolin-4-amine, Upstream Products: Piperazine, 2-Chloro-4-amino-6,7-dimethoxyquinazoline; Downstream Products: Doxazosin, Prazosin hydrochloride, Prazosin.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "6,7-dimethoxy-2-(piperazin-1-yl)quinazolin-4-amine (CAS 60547-97-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498781-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.