ITEM

SPECIFICATIONS

RESULTS

   Appearance

White crystalline powder

White crystalline powder

Identification

Chemical Method

Positive

   Specific rotation

-9.5°~ -11.0°

-10.32°

pH

3.0~4.5

3.63

Loss on drying

≤0.5%

0.20%

Melting point

169℃~175℃

169.5℃~171.0℃

Residue on ignition

≤0.2%

0.04%

Assay

L- carnitine

68.2%±1.0%

67.92%

L- tartrate acid

31.8%±1.0%

31.76%

Heavy metals

≤10ppm

＜10ppm

Arsenic

≤1ppm

＜1ppm

Chloride

≤4000ppm

＜4000ppm

Cyanide

Absent

Absent

Lead

≤3ppm

＜3ppm

Mercury

≤0.1ppm

＜0.1ppm

Cadmium

≤1ppm

＜1ppm

Conclusion: Quality comply with in-house grade