Test Items

Specifications

Result

Appearance

Off-White Powder

Complies

Optical Rotation

(-20 ^o) ~ (- 30 ^o)

-28.1 ^o

Assay

≥ 90%

90.5%

Loss on drying

≤ 10%

9.4%

Protein

≤ 3.5%

3.0%

Residue on Ignition

20.0%~30.0%

26.2%

Chlorides

≤ 0.50%

0.42%

Sulphates

5.5%-7.5%

7.0%

Heavy Metals

≤ 20ppm

Complies

Arsenic

＜ 1ppm

Complies

PH (1% Solution)

5.5 -7.5

6.8

Total plate count

＜ 1,000cfu/g

Complies

Yeast & Mold

＜ 100cfu/g

Complies

E. Coli

Negative

Negative

Salmonella

Negative

Negative

Conclusion

USP standard Complies

Shelf Life

Three Years