Product name: L(+)Choline Bitartrate
Structural formula: [HOCH2CH2N+(CH3)3]HC4H4O6-
Molecular formula: C9H19NO7
Molecular weight: 253.25
Properties: white crystalline powder , absorbing moisture easily
Edition: USP 26
Specification:
|
Item |
USP 26 |
|
Identification A , B , C |
Ok |
| Assay > % |
99.7 |
|
As ≤% |
0.0003 |
|
Heavy metals(as Pb ) ≤% |
0.002 |
|
Pb ≤% |
0.001 |
|
Residue on ignition ≤% |
0.1 |
|
Moisture ≤% |
0.5 |
|
PH |
3.4 ~ 3.7 |
|
Optical rotation |
+17.5 ~ +18.5 |
|
1,4-dioxan |
Ok |
|
Escherichia coli |
no |
|
salmonella |
no |
|
coliform |
<300g |
|
number of microzyme |
<100g |
|
Total number of bacteria |
≤3000g |
|
Appearance |
white crystalline powder |