CAS 486460-00-8, It is Sitagliptin's intermediate
Appearance: White or almost white powder
Solubility: Slightly soluble in methanol
Heavy Metals: 20ppm max
Residue on Ignition: 1% max
Specific Optical Rotation: +13.5~+17.5o
Maximum single impurity: 0.5% max
Total impurities: 2.0% max
Assay (by HPLC): 98.0%~102.0%