Methyl Red

Update:2014-12-12 13:42:31

    Item:Methyl Red
    Synonym:2-[[4-(二甲基氨基)苯基]偶氮基]苯甲酸, 4-二甲氨基偶氮苯-2′-羧酸, 酸性红 2
    CAS No.:493-52-7Special Grade:certified
    Formula:C15H15N3O2M.W.:269.30
Order
    Product No.SizePriceBrand
    250198-5g5g85GBCBIO
    250198-25g25g260GBCBIO
    250198-100g100g540GBCBIO
    250198-100g100g950Sigma
Introduction
    Dye Content(%)...............................................................85
    visual transition interval.................4.2 - 6.2, pink to yellow
    UV absorption(λmax )...............................................4
    原生动物活体染色;酸碱指示剂,pH变色范围4.4(红)~6.2(黄);滴定氨、弱有机碱和生物碱,但不适用于除草酸和苦味酸以外的有机酸;可与溴甲酚绿和亚甲基蓝组成混合指示剂以缩短变色域和提高变色的敏锐性;沉淀滴定的吸附指示剂,如用硝酸钍滴定氟离子;检定游离氯、亚氯酸盐等氧化剂。
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