求购下列产品：
1、9beta,11beta-epoxy-17,21-dihydroxy-16alpha-
methylpregna-1,4-diene-3,20-dione 8-DM 24916-9-3
30kg
2、N-Fluoro-N'-(chloromethyl)triethylenediamine Bis
(tetrafluoroborate) 140681-55-6 20kg
3、7-Amino-3-chloromethyl-3-cephem-4-carboxylic acid p-
methoxybenzyl ester hydrochloride ACLE 113479-65-5
1KG |
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