储存温度:室温;分子式:C19H17N2+ × NO3-;分子量:335.36;;Certification:This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities).;Special Notes:The counterion is determined quantitatively and treated as an impurity in the calculation of the absolute purity. The assigned absolute purity on the certificate of analysis therefore refers to the pure sempervirine.;运输条件:ambient conditions;Commodity description:natural alkaloid;Occurrence:Gelsemium sp.;