White-yellowish or with crystalline powder. Practically odorless.
Conforms
Solubility
Sparingly soluble in methanol
Conforms
Identification
infrared absorption
the retention time of the major peak corresponds to that of standard by HPLC
Conforms
Conforms
MP
177.0 – 180.0℃
177.7℃
Loss on drying
≤0.3%
0.07%
Sulphated ash
≤0.2%
0.06%
Related substance(HPLC)
2-Hydroxy nicotinic acid≤0.2%
0.03%
2-[(6-nicotinoyl)oxy] nicotinic acid≤0.4%
0.08%
6-Chloronicotinc acid ≤0.3%
Undetected
Any individual unidentified impurity≤0.2%
0.11%
Total of impurities≤1.0%
0.22%
Assay (HPLC)
99.0%
99.78%
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