(R,R)-7-Amino-3-(1-methylpyrrolidinio)methyl-3-cephem-4-carboxylate hydrochloride( 7-MPCA);  
CAS No. 780810-20-0
MF:   C13H19N3O3S.2ClH
Appearance: white or yellowish crystalline powder
N-Methylpyrrolidine:  0.2% max.
Loss on drying:  10% max.
Assay:  98.5%min.
Packing: 25kg /fibre drum
Application:  used as intermediates of Cefepime