ChemicalBook > CAS DataBase List > 6,7-Dimethoxyquinazoline-2,4-dione

6,7-Dimethoxyquinazoline-2,4-dione

Product Name
6,7-Dimethoxyquinazoline-2,4-dione
CAS No.
28888-44-0
Chemical Name
6,7-Dimethoxyquinazoline-2,4-dione
Synonyms
6,7-Dimethoxyquinazoline-2,4(1H,3H)-dione;QUINAZOLINDIONE;6,7-Dime;Doxazosin Impurity 5;LABOTEST-BB LT00453115;Doxazosin EP IMpurity D;Doxazosin Related CoMpound B;Doxazosin Mesilate Impurity D;6,7-Dimethoxyquinazoline-2,4-d;Doxazosin USP Related Compound B
CBNumber
CB1308378
Molecular Formula
C10H10N2O4
Formula Weight
222.2
MOL File
28888-44-0.mol
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6,7-Dimethoxyquinazoline-2,4-dione Property

Melting point:
>300 °C (lit.)
Boiling point:
363.37°C (rough estimate)
Density 
1.3404 (rough estimate)
refractive index 
1.6300 (estimate)
storage temp. 
2-8°C
solubility 
Aqueous Acid (Sparingly)
pka
10.27±0.20(Predicted)
color 
White to Off-White
Water Solubility 
insoluble
BRN 
204597
CAS DataBase Reference
28888-44-0(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-37/39
WGK Germany 
3
HS Code 
29339990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
PHR3311
Product name
Doxazosin Related Compound B
Purity
certified reference material, pharmaceutical secondary standard
Packaging
50MG
Price
$576
Updated
2024/03/01
Sigma-Aldrich
Product number
1225441
Product name
Doxazosin Related Compound B
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
20mg
Price
$1300
Updated
2024/03/01
Sigma-Aldrich
Product number
329258
Product name
6,7-Dimethoxy-2,4-quinazolinedione
Purity
97%
Packaging
5g
Price
$104
Updated
2023/06/20
TCI Chemical
Product number
D1839
Product name
6,7-Dimethoxyquinazoline-2,4-dione
Purity
>98.0%(HPLC)(T)
Packaging
5g
Price
$31
Updated
2024/03/01
TCI Chemical
Product number
D1839
Product name
6,7-Dimethoxyquinazoline-2,4-dione
Purity
>98.0%(HPLC)(T)
Packaging
25g
Price
$88
Updated
2024/03/01
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6,7-Dimethoxyquinazoline-2,4-dione Chemical Properties,Usage,Production

Chemical Properties

brown powder

Uses

6,7-Dimethoxyquinazoline-2,4-dione (Doxazosin EP Impurity D) is an intermediate in the preparation of Alfuzosin hydrochloride (A532000), an antihypertensive.

6,7-Dimethoxyquinazoline-2,4-dione Preparation Products And Raw materials

Raw materials

Preparation Products

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6,7-Dimethoxyquinazoline-2,4-dione Suppliers

Americas 1 Belgium 2 Canada 1 China 192 Europe 3 Germany 5 India 32 Japan 3 Slovakia 1 South Korea 1 Switzerland 3 United Kingdom 16 United States 38 Global 298
Toronto Research Chemicals
Tel
--
Fax
--
Email
info@trc-canada.com
Country
Canada
ProdList
6038
Advantage
71
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View Lastest Price from 6,7-Dimethoxyquinazoline-2,4-dione manufacturers

Hebei Mojin Biotechnology Co.,Ltd
Product
6,7-Dimethoxyquinazoline-2,4-dione 28888-44-0
Price
US $0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
50000KG/month
Release date
2024-08-14
Hebei Zhanyao Biotechnology Co. Ltd
Product
6,7-Dimethoxyquinazoline-2,4-dione 28888-44-0
Price
US $10.00/Kg/Bag
Min. Order
1KG
Purity
99%
Supply Ability
20 tons
Release date
2021-10-13
Zhuozhou Wenxi import and Export Co., Ltd
Product
6,7-Dimethoxyquinazoline-2,4-dione 28888-44-0
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-08-11

28888-44-0, 6,7-Dimethoxyquinazoline-2,4-dioneRelated Search:

Cefazolin sodium salt Naphazoline hydrochloride Dimethyldimethoxysilane Quinazoline 5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one Cefazolin Oxazoline Benzoyleneurea 6,7-DIMETHOXYQUINAZOLINE-2,4-DIONE = 6,7-DIMETHOXY-(1H,3H)-2,4-QUINAZOLINDIONE Dimethoxy 6,7-Dimethoxyquinazoline-2,4-dione

  • QUINAZOLINDIONE
  • 2,4-Dihydroxy-6,7-dimethoxquinazoline
  • 2,4-DIONE-6,7-DIMETHOXYQUINAZOLINE
  • 2,4-DIHYDROXY-6,7-DIMETHOXYQUINAZOLINE
  • LABOTEST-BB LT00453115
  • 1,2,3,4-TETRAHYDRO-6,7-DIMETHOXYQUINAZOLINE-2,4-DIONE
  • 6,7-DIMETHOXY-(1H,3H)-2,4-QUINAZOLINDIONE
  • 6,7-DIMETHOXY-2,4(1H,3H)-QUINAZOLINEDIONE
  • 6,7-DIMETHOXY-QUINAZOLINE-2,4-DIOL
  • 6,7-DIMETHOXYQUINAZOLINE-2,4-DIONE
  • 6,7-DIMETHOXY-2,4-QUINAZOLINEDIONE
  • 2,4-Dihydroxyl-6,7-dimethoxyquinazoline
  • 6,7-Dimethoxy-2,4-(1H,3H)quinazolidion
  • 6,7-dimethoxquinazoline-2,4(1h,3h)-dione
  • 6,7-Dimethoxyquinazoline-2,4-d
  • 2,4(1H,3H)-Quinazolinedione, 6,7-dimethoxy-
  • 6,7-Dimethoxyquinazoline-2,4(1H,3H)-dione
  • 6,7-Dimethoxy-1,3-dihydro-2,4-quinazolinedione
  • 6,7-DIMETHOXYQUINAZOLINE-2,4-DIONE 98%
  • 6,7-[ DIMETHOXYQUINAZOLINE-2,4-DIONE [6,7-DIMETHOXY-2,4(1H,3H)QUINAZOLINEDIONETERAZOSIN
  • Doxazosin Impurity 5
  • Doxazosin Impurity 4（Doxazosin EP Impurity D）
  • 6,7-Dimethoxy-1H-quinazoline-2,4-dione
  • 6,7-Dimethoxy-2,4-dioxo-1,2,3,4-tetrahydroquinazoline
  • 6,7-Dimethoxy-2,4(1H,3H)-quinazolinedione,97%
  • 6,7-Dime
  • 2,5-Dihydroxy-6,7-diMethoxyquinazoline
  • 1,2,3,4-TETRAHYDRO-6,6-DIMETHOXYQUINAZOL
  • Doxazosin EP IMpurity D
  • Doxazosin Related Compound B (20 mg) (6,7-dimethoxyquinazoline-2,4-dione)
  • Doxazosin Related CoMpound B
  • 6,7-Dimethoxy-2,4-quinazolinedione 97%
  • 6,7-dimethoxyquinazoline-2,5-diol
  • 1,2,3,4-Tetrahydro-6,7-dimethoxyquinazoline-2,4-dione for synthesis
  • 6,7-Dimethoxyquinazoline-2,4(1H,3H)
  • 6,7-Dimethoxyquinazoline-2,4-dione &gt
  • 6,7-Dimethoxyquinazoline-2,4-dione ISO 9001：2015 REACH
  • Doxazosin EP Impurity D/ Doxazosin Related Compound B
  • Doxazosin Related Compound B (6,7-dimethoxyquinazoline-2,4-dione) (1225441)
  • Doxazosin USP Related Compound B
  • Doxazosin Mesilate EP Impurity D
  • 2,5-Dihydroxy-6,7-dimethoxyquinazoline(DoxazosinImpurity)
  • Doxazosin Mesilate Impurity D
  • 28888-44-0
  • Heterocyclic Building Blocks
  • Building Blocks
  • Quinazolines
  • Aromatics
  • Heterocycles
  • Intermediates & Fine Chemicals
  • Pharmaceuticals
  • Building Blocks
  • Heterocyclic Building Blocks
  • Quinazolines
  • Quinoline&Isoquinoline
  • Doxazosin
  • Quinolines, Quinazolines and derivatives