Choline Magnesium Trisalicylate Powder Inhouse

Sl. No. Test Parameter Specification
1 Description Off-white or tan to pink powder, odor characteristic of choline salts.

a) Test for Choline
b) Test for Salicylates
c) Test for Magnesium

1.0g of the substance responds to the test for choline.
It gives the reaction of salicylates.
It responds to the test for magnesium.

3 pH of Aqueous Solution A 1% w/v solution in purified water is 5.0 - 8.0.
4 Water Content (KF) NMT 5.0%
5 Heavy Metals (Method-I) NMT 0.004%
6 EDTA disodium (HPLC) NMT 0.15%

Assays (on dry basis)
a) Magnesium
b) Choline
c) Total Salicylates

4.1 to 4.9%
17.0 to 20.6%
72.0 to 78.0%


Related Substances (HPLC)
a) 4-Hydroxy benzoic acid
b) 4-Hydroxy isophthalic acid
c) Phenol
d) Unspecified Impurity
e) Total Impurity

NMT 0.05%
NMT 0.05%
NMT 0.05%
NMT 0.05%
NMT 0.3%