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Audited Supplier 1. Vitamin B12 Characteristics
Synonyms: Cyanocobalamin
Formula: C63H88CoN14O14P
Weight: 1355.39 g/mol
MOQ: 100G
Package: 25KG/carton; 1kg/tin
HS Code: 2936260000
Certificate: ISO/Kosher/Halal
Specification: EP/BP/ USP/CHP
Grade: Pharmaceutical/Food/Feed grade
Type: Pure, 2%, 1%, 0.1%
2. Vitamin B12 specification
Across Biotech supply USP/BP/EP/Ch.P grade cyanocobalamin, pure, 2%, 1%, 0.1%, used as the pharmaceuticals, feed, food additive.
2.1 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 |
2.2 Vitamin b12 1% food grade specification
We supply vitamin b12 1% food grade, with the carrier of mannitol. Check the specification below:
| Items | Specification |
| Appearance | Pale red to brown, fine powder, hygroscopicity |
| Grain size | Essentially pass through 0.25mm sieve |
| Loss on drying | ≤12.0% |
| Assay(On dry basis by HPLC) | ≥1.0% |
| Pb | ≤10.0 ppm |
| As | ≤3.0 ppm |
| Total plate count | ≤1000cfu/g |
| Mold | ≤100cfu/g |
2.3 Vitamin B12 0.1% food grade specification
We supply vitamin b12 0.1% food grade, with the carrier of mannitol. Check the specification below:
| Item | Specification |
| Characters | From light red to brown powder |
| Identification | UV: Absorption maxima at 361nm, 550nm |
| HPLC: The retention time of the main peak of the sample is consistent with the retention time of the standard solution | |
| Assay | 100-130% of labeled assay |
| Loss on drying | ≤5.0% |
| Carrier | Mannitol |
| Lead | ≤0.5mg/kg |
| Arsenic | ≤1.5mg/kg |
| Particle size | ≥98% can through 0.25mm mesh |
| The total aerobic microbial | ≤1000cfu/g |
| The total combined yeasts/mould count | ≤100cfu/g |
| E.coli | N.D./10g |
| Salmonella | N.D./10g |
| Staphylococcus aureus | N.D. |
2.4 Vitamin B12 1% feed grade specification
We supply vitamin b12 1% feed grade, with the carriers of heavy calcium carbonate or starch. It's used in poultry and livestock feeding. Check the specification below:
| Items | Specification |
| Appearance | Pale red to brown, fine powder, hygroscopicity |
| Granularity | All pass through 0.25mm sieve |
| Loss on drying | ≤12.0% |
| Assay(On dry basis by HPLC) | ≥1.0% |
| Pb | ≤10.0 ppm |
| As | ≤3.0 ppm |
| Item | Specification |
| Vitamin B12 Pure | USP/EP/BP/JP 99% |
| Vitamin B12 2% | Food Additive |
| Vitamin B12 1% | Food Additive |
| Vitamin B12 1% | Feed Additive |
| Vitamin B12 0.1% | Food Additive |
1. We understand the industry, the competitive landscape of the product, the current state of production, and the characteristics of the product.
2. We not only provide products but also provide the latest industry information and product dynamics, saving you manpower and production costs.
3. We set up the warehouse near the logistics center to ensure that the products respond quickly and are sent out first.
4. Selection of shipping methods according to customer requirements. Documents, and files, were perfected in time and sent to the customer.
Across Biotech has been active in the food/feed additives industry for many years. We are located in Jinan, Shandong province, a beautiful historic city, about 3 hour drive from Qingdao port. Our own warehouse allows us to respond to customers' inquiries in the first instance and deliver products quickly.
The main products are feed/food grade vitamins, nutrition enhancers, some specific preservatives, and flavorings. We have also made an inventory of some products so that we can deliver the goods in time to ensure the normal supply of the goods.
Suppliers with verified business licenses
Audited Supplier 
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