Product Name: D-biotin (pure) 

Package: 5/10kg per Drum

Shelf life: 2 years

Items of analysis

Specifications

1  Description

a white or almost white crystalline powder

2Identification(IR)

    2.1IR

to match with the Referance IR spectrum

    2.2(TLC)

the principal spot in the chromatogram obtained with test. Solumn(b) is similar in position and size to the principle spot In the chromatograpm obtained with reference solution(a)

2.3Color reactio

The bromino water is decolourised

3:Specific Rotation          [α²⁵_D]

+89°~+93°

4:Organic Volatile impurities

    4.1:Benzen

≤2ppm

    4.2:Toluene

≤100pp

5:Appearance of solution

Clear and colourless

6:Related substances

Conform

7:Heavy Metals

≤10ppm

8:Loss on drying

≤1.0%

9:Sulphated ash

≤0.1%

10:Assay    

≥97.5~100.5% 

11:Microbiological

   11.1Total aerobic bectera count

≤1000cfu/g

   11.2Fungi count   

  ≤100cfu/g  

   11.3E.Coli               

n.d./g  

   11.4Staphylococcus aureus 

n.d./g  

   11.5Psendomonas aeruginosa

n.d./g  

   11.6Enterobacteria                

n.d./g  

   11.7Salmonella species           

n.d./g