2-Chloro-4-amino-6,7-dimethoxyquinazoline

CAS No.:

23680-84-4

Synonyms:

4-Amino-2-Chloro-6,7-Dimethoxyquinoline;

7-DiMethoxy-Quinazoline;

Formula：

C10H10ClN3O2

Molecular   Weight：

239.65800

PSA:

70.26000

LogP:

2.46380

Density:

1.391   g/cm3

Melting   Point:

262-278ºC   (dec.)

Boiling   Point:

374ºC at   760 mmHg

Refractive   Index:

1.649

Storage   Condition:

Store in   a cool, dry place. Store in a tightly closed container.

Vapor   Pressure:

8.63E-06mmHg   at 25°C

Safety   Statements:

S26-S37/39

HS Code:

2933990090

WGK   Germany:

3

Risk   Statements:

R36/37/38

Hazard   Codes:

Xi

Description

White to pale yellow coloured powder

White crystalline powder

Identification

By IR

By RT   comparison (HPLC)

-IR spectrum of test must match with that of standard

-HPLC

Complies

Solubility

Soluble   in Dimethyl formamide

Complies

Water (By KF)

≤0.5%

0.13%

Residue on ignition

≤0.2%

0.1%

Heavy metals

≤20ppm

＜20ppm

Chloroform

≤60ppm

10ppm

Ethanol

≤5000ppm

50ppm

6,7-dihydroxy -2,4-quinazolinedione

≤0.2%

Not found

2,4-dichloro-6,7-dimethoxyquinazoline

≤0.1%

Not found

Any single unknown impurity

≤0.1%

0.039%

Total impurity

≤0.5%

0.08%

Assay (on anhydrous basis)

98.0%～102.0%

99.6%

Conclusion

Up to enterprise grade