Chất chỉ thị màu – LONG HAI CHEMICAL CO.,LTD

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1-NAPHTHOL GR FOR ANALYSIS (MERCK) | 106223

1-NAPHTHOLBENZEIN INDICATOR REAG. PH EUR (MERCK) | 106202

1-NAPTHOL (VWR PROLABO)

1,10-PHENANTHROLINE MONOHYDRATE (MERCK) | 107225

L-HISTIDINE MONOHYDROCHLORIDE MONOHYDRATE (MERCK) | 104350

PH-INDICATOR PAPER PH 1 – 14 UNIVERSAL INDICATOR (MERCK) | 110962

POLYMYXIN B SULFATE (MERCK ĐỨC)|5291

RHODAMINE B (MERCK ĐỨC)|107599