China (Mainland)
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Best quality Vitamin B12 CAS 68-19-9 CAS NO.68-19-9
- FOB Price: USD: 2,800.00-3,000.00 /Metric Ton Get Latest Price
- Min.Order: 1 Kilogram
- Payment Terms: L/C,D/P,T/T,MoneyGram,Other
- Available Specifications:
USP 35(1-10)Metric TonUSP 35(10-20)Metric Ton
- Product Details
Keywords
- Vitamin B12
- Best quality Vitamin B12
- 68-19-9
Quick Details
- ProName: Best quality Vitamin B12 CAS 68-19-9
- CasNo: 68-19-9
- Molecular Formula: C63H88CoN14O14P
- Appearance: red powder
- Application: for pharma use CAS 68-19-9
- DeliveryTime: Prompt
- PackAge: drum and bag
- Port: Beijing or Guangzhou
- ProductionCapacity: 500 Kilogram/Month
- Purity: 99.90%
- Storage: in sealed air resistant place
- Transportation: by sea or air
- LimitNum: 1 Kilogram
- Related Substances: NMT0.001%
- Residue on Ignition: 0.00%
- Heavy Metal: NMT1ppm
- Valid Period: 2 years
- CAS: 68-19-9
- Product name: Vitamin B12
Superiority
Details
| Vitamin B12 Food Grade | ||||
| PARAMETER | SPECIFICATION | |||
| Appearance | Light red homogencous powder | |||
| Identification | Positive | |||
| Loss on drying | Max.0.5% | |||
| Assay of vitamin B12(on dry sub) | 0.9-1.3% (HPLC Method) | |||
| Carrier | Mannitol | |||
| Size | Max 250um | |||
| Vitamin B12 Feed Grade | ||||
| PARAMETER | SPECIFICATION | |||
| Appearance | Light red homogencous powder | |||
| Identification | Positive | |||
| Loss on drying | Max.12% | |||
| Assay of vitamin B12(on dry sub) | 0.9-1.3% (HPLC Method) | |||
| Carrier | Starch | |||
| Size | Max 250um | |||
| Vitamin B12 (Cyanocobalamin) | ||||
| PARAMETER | SPECIFICATION (USP32) | |||
| Appearance | dark-red,crystalline powder, Or crystals,hygroscopic | |||
| Identification | Positive | |||
| Loss on drying | Max.12% | |||
| Ratio Absorbances |
A361nm/A278nm:1.70-1.90 A361nm/A550nm:3.15-3.40 |
|||
| Pseudo Cyanocobalamin | Complies | |||
| Assay on dried | 96.0%-100.5% | |||
| Microbiology | ||||
| Bacteria | ≤1000cfu/g | |||
| Mould & yeasts | ≤100cfu/g | |||
| E Coli | Negative | |||
| Limit of residual | Acetone≤0.5% | |||
| Vitamin B12 (Mecobalamin) | ||||
| PARAMETER | SPECIFICATION (Standard of JP X IV) | |||
| Appearance | Dark red crystals crystalline powder | |||
| Identification | UV: Compare the spectrum with the reference spectrum | |||
| Chemical: Postive | ||||
| Solution purity | Clear and red color | |||
| Assay (on anhydrous basis) | Min. 98.0% | |||
| Related substances (HPLC) | The largest area of the peaks: ≤0.5% | |||
| Tatal content: ≤2.0 | ||||
| Moisture | Max.12.0% | |||
| Acetone,By GC | ≤5000ppm | |||