Valaciclovir CAS NO.124832-26-4

Characteristics :White or almost white powder Identification :Conforms Specific rotation :-8.5°~ -11.5° PH :4.0~6.0 …

 Characteristics :White or almost white powder 

Identification :Conforms 

Specific rotation :-8.5°~ -11.5° 

PH :4.0~6.0 

Water Anhydrous: ≤2.0%

Hydrous: 5.0%~9.0%

Heavy metals :≤10ppm 

Palladium :≤10ppm 

Palladium :≤10ppm 

Residue on ignition :≤0.1% 

Organic impurities Related compound E: ≤0.2%

Related compound F: ≤0.1%

Related compound G: ≤0.05%

Acyclovir alaninate: ≤0.2%

Related compound C: ≤0.3%

Related compound D: ≤0.5%

Acyclovir isoleucinate: ≤0.2%

N-formyl valacyclovir: ≤0.8%

Guaninyl valacyclovir: ≤0.2%

Bis valacyclovir: ≤0.3%

Any other individual impurity:≤0.1%

Total unspecified impurities: ≤0.2%

Guanine & Acyclovir: ≤2.0%

Related compound A: ≤0.2%

D-valacyclovir: ≤3.0%

Total impurities(1+2+3): ≤5.0%

Assay(HPLC on anhydrous and solvent free basis) :95.0%~102.0%