Name Tiagabine hydrochloride
Synonyms (3R)-1-[4,4-Bis(3-methylthiophen-2-yl)but-3-enyl]piperidine-3-carboxylic acid hydrochloride
Molecular Formula C20H25NO2S2.HCl
Molecular Weight 412.01
CAS Registry Number 145821-59-6
Description White to off-white crystalline powder
Chemical Purity(HPLC) NLT 99.0%
S-isomer NMT 0.5%
Total residual volatiles: ethanolorether NMT 0.5%
Water NMT 5.0%
Residue on ignition NMT 0.2%
Heavy metals NMT 20ppm
Other single impurity NMT 0.1%
Major related impurity RRT=1.13 NMT 0.6%

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