Vitamin B12 CAS:68-19-9 CAS NO.68-19-9

Product Name:Vitamin B12
Other Name:Cyanocobalamin
Purity:98%
CAS No.:68-19-9
Appearance:Dark red crystaline powder
Form:Powder

Items	Specification	Results
Appearance	Red to dark red Crystalline Powder or Crystals	Complies
Odor	Characteristic	Characteristic
Identification A	Complies	Complies
Identification B	The retention time of major peak of the sample solution corresponds to that of the standard solution	Complies
Particle Size	Thru 60mesh >98%	Complies
Bulk density	≥0.5g/ml	0.5g/ml
Loss on drying	≤2.0%	0.2%
Pb	≤0.5ppm	Complies
As	≤3.0ppm	Complies
Cd	≤2.0ppm	Complies
Hg	≤0.1ppm	Complies
Assay (HPLC) (on dried substances)	1.0%~1.3%	1.01%
Total plate count	≤1000cfu/g	50cfu/g
Molds & Yeast	≤100cfu/g	<10cfu/g
E. Coli	Negative	Negative
Staphylococcus aureus	Negative	Negative
Salmonella	Negative	Negative
Residual solvents	Acetone≤0.5%	Not detected