Product name: Methylcobalamin

CAS NUMBER: 13422-55-4

EXPIRY DATE: 3 years

Test items

Specifications

Characters

Dark red crystals or crystalline powder

Identification

1)      UV: compare the spectrumwith the reference spectrum, both spectra exhibit similar intensities of absorption at the same wavelengths

2)      Cobalt: meets JP requirement

Clarity and color of solution

The solution is clear and red color

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 tan mecobalamin is not more than 2.0%

Water

≤11.5%

Assay (Calculated on the anhydrous basis)

98.5%-101.0%

Acetone

≤5000ppm

The total aerobic microbial count

≤1000cuf/g

The total combined yeasts/mould count

≤100cfu/g