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.；

储存温度：-20℃；分子式：C18H25NO6；分子量：351.39；；Certification：This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities).；；运输条件：in styrofoam box together with -20℃ gel packs；Commodity description：natural alkaloid；Occurrence：Senecio sp.；

储存温度：-20℃；分子式：C17H24O3；分子量：276.38；；Certification：This substance is supplied with certified chromatographic purity.；Special Notes：This substance is prepacked and available in 10 mg portions only. Orders of larger quantities will be delivered as the corresponding number of 10 mg portions (e.g. an order of 50 mg will be delivered as 5 x 10 mg).；运输条件：in styrofoam box together with -20℃ gel packs；Commodity description：ketone with other oxygen functions；Occurrence：Zingiber sp.；

储存温度：室温；分子式：C23H32O15；分子量：548.49；别名：3-O-Sinapoylsucrose；Certification：This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities).；；运输条件：ambient conditions；Commodity description：natural glycoside；Occurrence：Polygala sp.；

储存温度：室温；分子式：C27H43NO3；分子量：429.65；别名：Imperialine; Kashmirine；Certification：This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities).；；运输条件：ambient conditions；Commodity description：natural alkaloid；Occurrence：Fritillaria sp.；

储存温度：室温；分子式：C14H13NO4；分子量：259.26；别名：Chloroxylonine; β-Fagarine；Certification：This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities).；；运输条件：ambient conditions；Commodity description：natural alkaloid；Occurrence：Aegle sp. Dictamnus sp. Esenbeckia sp. Evodia sp. Fagara sp. Haplophyllum sp. Melicope sp. Ruta sp. Skimmia sp. Zanthoxylum sp.；

储存温度：4℃；分子式：C30H50O3；分子量：458.73；别名：Soyasapogenin B; Soyasapogenol I；Certification：This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities).；；运输条件：ambient conditions；Commodity description：cyclic alcohol；Occurrence：Glycine sp. Melilotus sp.；

储存温度：室温；分子式：C38H60O18；分子量：804.89；别名：Steviosin；Certification：This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities).；Special Notes：Because of its hygroscopicity this substance has been prepacked and is available in 20 mg portions only. Orders of larger quantities will be delivered as the corresponding number of 20 mg portions (e.g. an order of 60 mg will be delivered as 3 x 20 mg).；运输条件：ambient conditions；Commodity description：natural glycoside；Occurrence：Stevia sp.；

储存温度：室温；分子式：C26H28O13；分子量：548.49；别名：4',7-Dihydroxyisoflavone 8-C-(6''-xylosylglucoside)；Certification：This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities).；；运输条件：ambient conditions；Commodity description：natural glycoside；Occurrence：Pueraria sp.；

储存温度：-20℃；分子式：C34H22O22；分子量：782.54；；Certification：This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities).；Special Notes：The substance is a mixture of Punicalin A and Punicalin B.；运输条件：in styrofoam box together with -20℃ gel packs；Commodity description：natural glycoside；Occurrence：Punica sp. Terminalia sp.；