Vitamin B12

Vitamin B12
Vitamin B12Vitamin B12Vitamin B12Vitamin B12Vitamin B12
CategoriesPharmaceutical raw materials
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Update Time2019-08-22
Detail Information
Product Parameter

Cyanocobalamin Pure
Test Item
Specification
Appearance
Dark red crystal or dark red crystalline

Identification A
UV: Absorption maxima at 278±1nm, 361±1nm and 550±2nm.
 A361nm/A278nm:1.70-1.90
  A361nm/A550nm:3.15-3.40
Identification B
TLC:The principal spot in the chromatogram obtained with the test solution is similar in position, colour and size to the principal spot in the chromatogram obtained with the reference solution.
Loss on drying
≤12.0%
Assay
96.0%~102.0%
Residual substances
Tptal impurities ≤3.0%
Residual solvents
Acetone≤5000ppm
Total aerobic bacteria
≤1000cfu/g
Molds、Yeasts
≤100cfu/g
Mecobalamin Pure
Test Item
Specification
Appearance
Dark red crystal or dark red crystalline

Identification 
UV: Compare the spectrum with the reference spectrum ,both spectra exhibit similar intensities of absorption at the same wavelengths
Cobalt:Meets JP requirement
Clarity and color of solution
The solution is clear and red color
Assay
 98.5%-101.0%
Water
≤11.5%

Related substances
Each area of the peaks other than mecobalamin is not more than 0.5% of the peak area of mecobalamin
The total area of the peaks other than mecobalamin is not more than 2.0%
Acetone
  ≤5000ppm
Total aerobic microbial amount
 ≤1000cfu/g
Other Spec.:
Cyanocobalamin Feed grade 0.1%,1%
Cyanocobalamin Food grade 1%,2%,5%

Product Detail

Cyanocobalamin

CAS No.:68-19-9

EINECS No.:200-680-0

Place of Origin: China (Mainland)

Grade Standard:  Pharma grade, Feed Grade, Food Grade

Brand Name: TNN

Model Number: BP USP EP

Purity:0.1% ,1%,2%,5%,99%



      Mecobalamin 

      CAS No.:13422-55-4

      EINECS No.:236-535-3

      Place of Origin: China (Mainland)

      Grade Standard: Pharma grade, Food Grade

      Brand Name: TNN

      Model Number: JP

      Purity:99%


     Packing & Delivery: 0.5kg/tin,1kg/tin

 
Application
1. Ascorbic acid (vitamin C) is used to prevent or treat low levels of vitamin C in people who do not get enough of the vitamin from their diets.

2. Ascorbic acid and its sodium, potassium, and calcium salts are commonly used as antioxidant food additives.

3. Ascorbic acid is easily oxidized and so is used as a reductant in photographic developer solutions(among others)and as a preservative.

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