Carbazochrome sodium CAS NO.51460-26-5

characters

orange yellow crystalline powder, odorless，should be soluble in water, slightly soluble in water, insoluble in ethanol and chloroform

melting point

213℃～220℃

absorption coefficient

836～888

identification

1. conforms
2. conforms
3. uv：the absorption coefficient of the solution at the wavelength of 229nm and 363nm has the largest absorption
4. ir：should be consistent with the reference standard

clarity of solution

clear

water

13.0%～16.0%

adrenobazone

the color of the impurities in the test sample shall not be deeper than the main spot of the control solution

related substances

carbazochrome ≤2.0%

individual impurity (except carbazochrome)≤0.5%

total impurity≤1.0%

acetone

≤0.5%

heavy metals

≤20ppm

microbial limit

conforms

assay

≥98.5% (c10h11n4o5sna on dried basis)