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Calcium oxide from marble large lumps ~ 13-100 mm LAB
1,2-Bis(2-aminophenoxy)-ethane-N,N,N'N'-tetraacetic acid, 97% 5GR
双(2-二甲氨基乙基)醚,98.0%(GC)
STREPTAVIDIN AGAROSE
4-Amino-2-methylmercaptoquinazoline, 97% 2.5GR
CORNING CENTRIFUGE TUBES, 15 ML,PET, PLUG SEAL CAP
ANGIOTENSIN CONVERTING ENZYME 1
9-Ethynyl-9-fluorenol 5GR
Chromosulfuric acid 2.5LT
4-Epianhydrochlortetracycline hydrochloride, can be used as secondary standard 500MG