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水流动相GPC标样-聚丙烯酰胺, 非离子型; Aqueous GPC/SEC StandardssPolyacrylamide, Non-ionic Polyacrylamide; Mp 25200, Mw 27500, Mn 21800 IV 0.231; IV* - Intrinsic Viscosity (dL/g) in 0.05m Sodium Sulfate at 30°C (a = 0.66; K = 0.000373)
5α(H)-Androstan-17-one
Norbixin 标准品
甲苯中草毒死(二丙烯草胺)
PUNYW27080129 Escin IA
氢溴酸非诺特罗/酚丙喘宁芬忒醇(标准品)[1944-12-3]
2,2',3,3',4,4',6-Heptachlorobiphenyl 标准品
3-甲氧基-1-丁醇
Yttrium - 4% HNO3(有证书)
Dichlorofluoromethane 100 ?g/mL in Methanol
N-(Aminoethyl)-5-naphthylamine-1-sulfonic Acid