溴百里酚蓝钠盐,Bromothymol Blue sodium [BTB-Na];ACS reagent
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4-硝基苯甲酸,4-Nitrobenzoic acid;purum, ≥98.0% (HPLC) -
青霉素G钾盐,Penicillin G potassium salt;Pharmaceutical Secondary Standard; Certified Reference Material -
二苯基碘硝酸盐,Diphenyliodonium nitrate [DPIN] -
无水三氯化铁(III),Iron(III) chloride;reagent grade, 97% -
碳酸二甲酯,Dimethyl carbonate [DMC];≥99.9%, acid <10 ppm, H2O <10 ppm -
氯胺T三水合物,Chloramine T trihydrate [CAT];Reag. Ph. Eur., 98.0-103.0%
