Veterinary pharmacopoeia |
(2010) | BP2009 | EP6 | USP 31 |
Traits: white or yellowish crystals or powder | White or yellowish crystal or powder | Same as BP | Same as BP |
Melting point: 197-200 ° C | 197-200 ° C | 197-200 ° C | 197-200 ° C |
Identification: (1) (2) (3) should be consistent | ABCD should be in accordance with | ABCD should be in accordance with | AB should meet |
pH: ≤ 0.1mol/L NaOH 0.2ml | ≤ 0.1mol/L NaOH 0.2ml | Same as BP | Same as BP |
Chloride: ≤ 0.01% | / | / | / |
Related substances: ≤ 0.5% (TLC) | ≤ 0.5% (TLC) | ≤ 0.5% (TLC) | / |
Loss on drying: ≤ 0.5% | ≤ 0.5% | ≤ 0.5% | ≤ 0.5% |
Residue on ignition: ≤ 0.1% | ≤ 0.1% | ≤ 0.1% | / |
Heavy metal: not more than 10 parts per million | ≤20PPM | ≤20PPM | ≤20PPM |
selenium: | / | / | ≤ 0.003% |
Content (dry product): not less than 99.0% | 99.0-101.0% | 99.0-101.0% | 99.0-100.5% |