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Structural formula:



Molecular formula and weight: C₁₈H₂₃NO₃HCl                M=337.84
Quality standard:BP 2010 version;USP version
Properties:white or white-like crystalline powder, melting point 188-193;content limitation:98. 5% minimum;P H value:4. 5-6. 0;drying loss:< 0.5%;residue on ignition:< 0.1% ;heavy metal:< 20ppm.

Packing:Avoid heat, moisture. Sealed in polythene film bag with aluminum foil outside.
Manufacturing license number:GYZZ H31020538