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4-[2-(2-Amino-4,7-dihydro-4-oxo-3H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoic Acid
Riluzole Related Compound A
Chloroquinaldol,certified 标准品
辛夷农残空白质控样
MENTHONE, (-)-(SG) 标准品
3,3',4-Trichlorobiphenyl (无证书)
毛蕊异黄酮 对照品
n-Tetracosane Solution 100ug/ml in Methylene chloride
四唑嘧磺隆溶液,100ppm
PAHs14组份-苊烯,蒽,苯并(a)蒽,苯并(b)荧蒽,苯并(k)荧蒽,苯并(g,h,i)?,苯并(a)芘,屈,二苯并(a,h)蒽,芴,茚并(1,2,3,c,d)芘,萘,菲,芘