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Product Name

 CHOLINE BITARTRATE LR

Article No

 C0068400500

CAS No

 87-67-2

Molecular Formula

 C9H19NO7

Molecular Weight

 253.25

Specifications

Appearance:

 White hydroscopic, crystalline powder with clear colourless Liquid in solution,melt between 148°C & 153°C is odorless, or may have faint trimethylamine odor

Arsenic (As):

 Max 0.0002%

Lead (Pb):

 Max 0.00003%

Water (H2O):

 Max 0.5%

Solubility:

 To comply

Assay (on anhydrous basis):

 99.0 to 100.5%

Residue on ignition:

 Max 0.1%

Heavy metal:

 Max 0.001%

Identification 'A' ( by IR):

 To comply

Identification 'B':

 To comply

Limit of total amines:

 Max 0.001%

Chromatographic purity (by HPLC) - Individual Impurity:

 Max 0.3%

Chromatographic purity (by HPLC) - Total impurities:

 Max 2.0%

Organic volatile impurities (By GC) - Chloroform:

 Max 600µg/g

Organic volatile impurities (By GC) - 1,4-Dioxane:

 Max 10µg/g

Organic volatile impurities (By GC) - Methylene Chloride:

 Max 600µg/g

Organic volatile impurities (By GC) - Trichloroethylene:

 Max 80µg/g

pH:

 3.0 to 4.0

Specific optical rotation ([?]20/D):

 Between + 17.5° and + 18.5°