Superiority:
USP
Appearance White or almost white crystalline powder
Identification 1/Should appear positive reaction
2/Should comply with requirement
Acidity 18.0-19.3
Specific optical rotation +24?min
Bulk density 0.45-0.0g/cm3
Heavy metals 10ppm max
Melting point 73-78℃
Assay(alpha tocopheryl succinate),IU/g 96.0-102.0%
Benz(a)pyrene 2ppm max
Microbiological test Total aerobic microbial count:1000cfg/g max
Yeats and mould:100cfu/g max
E.Coli: Negative
Conclusion The above result complies with USP33 standard.
Details:
USP
Appearance White or almost white crystalline powder
Identification 1/Should appear positive reaction
2/Should comply with requirement
Acidity 18.0-19.3
Specific optical rotation +24?min
Bulk density 0.45-0.0g/cm3
Heavy metals 10ppm max
Melting point 73-78℃
Assay(alpha tocopheryl succinate),IU/g 96.0-102.0%
Benz(a)pyrene 2ppm max
Microbiological test Total aerobic microbial count:1000cfg/g max
Yeats and mould:100cfu/g max
E.Coli: Negative
Conclusion The above result complies with USP33 standard.