Tetrahydrozoline Hydrochloride

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Tetrahydrozoline Hydrochloride
2-(1,2,3,4-tetrahydronaphthalen-1-yl)-4,5-dihydro-1H-imidazole,hydrochloride
 
Appearance and properties: off-white solid
Boiling point: 393.5ºC at 760 mmHg
Melting point: 197 °C
Flash point: 191.8ºC
 
Storage conditions: Refrigerator
Uses: Tetrahydrozoline hydrochloride is an α-adrenergic receptor agonist.
 

Items of Analysis	Standard of Analysis	Test Results
Appearance	White to off-white powder	Conforms
Identification	IR spectrum UV spectrum Reaction of Chlorides	Conforms Conforms Positive
Heavy metals(USP)	NMT 0.005%	＜0.005%
Loss on drying(USP)	NMT 1.0%	0.2%
Residue on ignition	NMT 0.1%	＜0.1%
Related substances-sum:  -TLC(USP) -HPLC	NMT 2.0% NMT 1.0%	＜2.0% 0.8%
Assay(in the dried substance):  -titration(USP)	98.0-100.5%	99.7%
Residual solvents: -Methanol -Ethanol -Acetonitrile -Toluene	NMT 3000ppm NMT 5000ppm NMT 410ppm NMT 890ppm	Not detected Conforms Not detected Not detected
Conclusion	Conforms to USP 39

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