ITEMS

SPECIFICATION

RESULTS

Appearance

White or almost white crystalline powder

Almost white crystalline powder

Identification

The IR spectrum conforms to that of reference standard.

Complies

pH

4.0 ~5.5

4.9

Specific optical rotation

+149° ~ +158°

+154°

Related Substances

7-ADCA NMT 1.0%

N.D

Any other impurity NMT 1.0%

0.11%

Total impurities NMT 3.0%

0.16%

Methanol

NMT0.3%

0.01%

Acetone

NMT0.3%

0.03%

Methylene chloride

NMT 0.06%

N.D

N,N-Dimethylformamide

NMT 0.088%

N.D

Water content

4.0% ~ 8.0%

5.2%

Sulfated ash

NMT0.2%

0.04%

Assay

95.0% ~102.0% (anhydruos substance)

99.3%

Bulk density

For information only

0.63g/ml

Tapped density

For information only

0.89g/ml

Remarks

N,N-Dimethylaniline in this process in not utilized

Conclusion: The product complies with specification BP2021.