No.

Items

Quality specification

1

Appearance

White or pale Yellow Non-Crystalline Powder

2

Content Assay

≥99%

3

Specific Rotation

+66.7°±1.5°

4

Loss of Drying

<8%

5

PH

4.15±1

6

chloride

Negative

7

Potassium

<0.01%

8

Sodium

<0.01%

9

Zinc

<1.1ppm

10

Copper

<1.1ppm

11

Cadmium

<0.005ppm

12

Mercury

<0.05ppm

13

Lead

≤0.1ppm

14

Arsenic

<0.5ppm

15

Escherichia Coli

<40

16

Salmonella

Negative

17

Staphylococcus Aureus

Negative

18

Streptococcus

Negative

19

Shigella

Negative