¿ÀÆÛ°Ô½ÃÆÇ |
|
|
Á¦ ¸ñ:
|
vitamin B12 |
»óǰºÐ·ù: |
À¯±âÈÇпø·á¿Í Áß°£Ã¼
|
µî·ÏºÐ·ù: |
Offer to Sell |
³» ¿ë: |
Quantity: 10Metric Tons
Additional_detail: If you need vitamin b12, please
contact me as soon as possible,
we have
Pharm grade,
Food grade,
Feed grade( vitamin b12 1%,2%,3%)
Our pharm grade as follows:
Standard: Bp2004, usp28, ep5.0
Specification:
Item standard result
Appearance dark red crystalline
powder dark red crystalline
powder
Indentification positive positive
Ratio absorbance
a361/a278 1.70-1.90 1.87
a361/a550 3.15-3.40 3.28
Loss on drying % 12 max 2.50
Assay % 96-102.0 98.60
Related substances % 3 max 0.78
Pseudo cyanocobalamin complies
complies
|
¿¬¶ôó |
|