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δ-六六六标准溶液,319-86-8,analytical standard,100ug/ml in petroleum ether
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N-Bis(2-hydroxypropyl)nitrosamine | MedChemExpress (MCE)
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正己烷中18种邻苯二甲酸酯混标,1000μg/ml(GB5009.271-2016)
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除虫脲标准溶液,35367-38-5,100ug/ml,u=2%,in acetone
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残杀威标准溶液,114-26-1,analytical standard,100ug/ml in acetone
-
异菌脲标准溶液,36734-19-7,analytical standard,100ug/ml in benzene
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C灭蝇胺标准溶液,66215-27-8,analytical standard,100ug/ml in H2O
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First Standard® 正己烷中邻苯二甲酸二(4-甲基-2-戊基)酯-d4溶液,100μg/mL
Bis(4-Methyl-2-pentyl) phthalate-3,4,5,6-d4 Solution in Hexane, 100μg/mLFirst Standard®天津
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N-Mal-N-bis(PEG2-NH-Boc) | MedChemExpress (MCE)
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N-Mal-N-bis(PEG2-NHS ester) | MedChemExpress (MCE)
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