Basic Info
  • Grade: Food Grade

    Factory Location: Hebei

    Main Sales Markets: North America,Central/South America,Eastern Europe,Asia,Africa

  • Packaging Information: 0.5kg/tin

  • Sample Provided: no

    Manuafcturer: Hebei Yuxing Bio-engineering Co.,Ltd

    Items

                Specification

    Appearance

                 Dark red crystalline powder or dark red

                 crystals

    Identification A (UV)

                 Absorption maxima at 278nm, 361nm 

                  and from 547nm to 559nm

    Ratio absorbances

                  A361/A278nm  1.70-1.90

                  A361/A550nm  3.15-3.40

    Identification B (TLC)

                 Conforms to standard

    Identification C(Chemistry)

                 Positive

    Identification D(Chemistry)

                 Positive

    Pseudo cyanocobalamin

                Complies

    Related substances (HPLC)

                ≤3.0%

    Loss on drying 

                ≤12.0%

    Assay(on anhydrous basis) UV

                96%~100.5%

    Residual Solvent (GC)

    Acetone

                 ≤0.5%

    Ethanol

                 ≤0.5%

    Total Plate count

                ≤1000cfu/g

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    HEBEI HUANWEI BIOTECH CO.,LTD.
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