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哒草伏
没药(天然没药)
治螟磷
噻嗪酮农药纯度标准物质
ST. JOHN'S WORT VOUCHER(UPON REQUEST) 标准品
Ranitidine Resolution Mixture
Internal standard mixture, 100μg/ml in hexane 100μg/ml in hexane each of Naphthalene-d8, Acenaphthen
N-Phenyl-N'-cyclohexyl-p-phenylenediamine (无证书)
ASTM D5599 Oxygenates in Gasoline Cal. Std. #7 w/ IS in Oxygenate Free Gasoline
西马特罗