Dayang Chem (Hangzhou) Co., Ltd. is one of the leading manufacturers and suppliers of 2-chloro-4-amino-6,7-dimethoxyquinazoline cas 23680-84-4 in China, specialized in providing high quality customized chemicals. Welcome to wholesale bulk 2-chloro-4-amino-6,7-dimethoxyquinazoline cas 23680-84-4 made in China here and get pricelist from our factory. Good service and reasonable price are available.
Specification
|
Appearance |
White to pale yellow flocculent crystallization |
|
Assay |
98.0% Min |
|
Loss on drying |
0.5% Max |
|
Residue on ignition |
0.1% Max |
|
2,4-dihydroxy-6,7-dimethoxy quinazoline |
0.2% Max |
|
2,4-dichloro-6,7-dimethoxy quinazoline |
0.1% Max |
|
Single impurity |
0.1% Max |
Should the need arise; we will send you the latest specifications and analysis report.
Packaging and delivery
|
Packaging |
25kg net per drum or custom packaging upon request |
|
Storage |
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. |
|
Transport Classification |
Not regulated as a dangerous good |
|
Lead Time |
in stock |
|
Shipping Methods |
By express: DHL,FedEx,UPS,for under 10kg By air: from Shanghai,Beijing ,suitable for under 200kg By sea:from Shanghai ,Qingdao, suitable for large quantity |
Applications
Intermediate in the production on Terazosin.
Spectrum
Related Articles
1. Synthesis and biological profile of the enantiomers of [4-(4-amino-6,7-dimethoxyquinazolin-2-yl)-cis-octahydroquinoxalin- 1-yl]furan-2-ylmethanone (cyclazosin), a potent competitive alpha 1B- adrenoceptor antagonist.
J. Med. Chem. 39 , 4602, (1996)
2. 2,4-Diamino-6,7-dimethoxyquinazolines. 3. 2-(4-Heterocyclylpiperazin-1-yl) derivatives as alpha 1-adrenoceptor antagonists and antihypertensive agents.
J. Med. Chem. 30(10) , 1794-8, (1987)
3. 2,4-Diamino-6,7-dimethoxyquinazolines. 2. 2-(4-Carbamoylpiperidino) derivatives as alpha 1-adrenoceptor antagonists and antihypertensive agents.
J. Med. Chem. 30(6) , 999-1003, (1987)
4. Synthesis, pharmacological evaluation, and structure-activity relationship and quantitative structure-activity relationship studies on novel derivatives of 2,4-diamino-6,7-dimethoxyquinazoline alpha1-adrenoceptor antagonists.
J. Med. Chem. 42 , 427, (1999)
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