China (Mainland)
USP Vitamin B12 CAS NO.68-19-9
- Min.Order: 100 Gram
- Payment Terms: L/C,D/P,T/T,MoneyGram,Other
- Product Details
Keywords
- vitamin b12
- Cyanocobalamin
- V B12 99%
Quick Details
- ProName: USP Vitamin B12
- CasNo: 68-19-9
- Appearance: dark red powder
- Application: Pharmaceutical Industry food additive...
- DeliveryTime: 5~10 working days
- PackAge: box
- Port: Beijing/shanghai
- ProductionCapacity: Metric Ton/Day
- Purity: pure
- Transportation: room temperature
- LimitNum: 100 Gram
Superiority
MOQ: 100g
1. Vitamin B12 Characteristics
Synonyms: Cyanocobalamin
Formula: C63H88CoN14O14P
Weight: 1355.39 g/mol
MOQ: 100G
Package: 25KG/carton; 1kg/tin
HS Code: 2936260000
Specification: EP/BP/ USP/CHP
Grade: Pharmaceutical/Food/Feed grade
Type: Pure
Apperance: dark red crystal power
Details
1 Vitamin B12 Pure/99% USP specification
| Item | USP41 |
| Appearance | Dark red crystals or amorphous or crystalline red powder |
| Identification A | A361nm/A278nm: 1.70-1.90
A361nm/A550nm: 3.15-3.40 |
| Identification B | Cobalt: Meets USP requirements |
| Identification C | HPLC: The retention time of the major peak of the sample solution corresponds to that of the standard solution. |
| Loss on drying | ≤10.0% |
| Assay | 97.0%-102.0% |
| Related substances | |
| Total impurities | ≤3.0% |
| 7β, 8β-Lactocyanocobalamin | ≤1.0% |
| 34-Methylcyanocobalamin | ≤2.0% |
| 8-Epi-cyanocobalamin | ≤1.0% |
| Any other unidentified impurity and 50-Carboxycyanocobalamin, 32-Carboxycyanocobalamin | ≤0.5% |
| Acetone | ≤5000ppm |
| Total aerobic microbial count | ≤1000cfu/g |
| Total combined yeasts/mould count | ≤100cfu/g |