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1000ppm浓度溯源于NIST
3-氯-2-氟苯胺, ≥98.0%
Diethyl ketomalonate, 95% 5GR
2-苯基硫甲基苯甲酸
3-Bromophenylhydrazine hydrochloride, 98% 5GR
2-(4-Chlorophenyl)malondialdehyde, 95% 2.5GR
4,4'-Biphenyldicarboxylic acid, 98% 1GR
4-BROMOBENZYLAMINE, 96%
四氢罂粟碱盐酸盐，98%+
Spermine, 97% 250MG
URAPIDIL, 5-METHYL SELECTIVE A1A ADRENOC
