3-Azido-3-deoxythymidine (AZT)

Tests Specifications
Description A white to almost white powder practically

odorless and free of foreign matters

Solubility Sparingly soluble in water, soluble in ethanol 95%
Identification AĦĦ Positive
Identification B Positive
Heavy Metals Not more than 20 ppm
Loss on Drying Not more than 1.0% (105'C/constant weight)
Melting Point 118'C ~ 126'C
Assay Not less than 97.0% and not more than 102.0%

(as anhydrous basis)

Specific Rotation Between +60.5' to 63.0'

(solution at 1% in ethanol 95% at 25'C)

Residue on Ignition Not more than 0.25%
Chromatographic Impurity Not more than 0.5% for impurity individual

Not more than 2.0% for impurities total