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.: | 493-52-7 | Special Grade: | certified |
Formula: | C15H15N3O2 | M.W.: | 269.30 |
Order
Product No. | Size | Price | Brand |
250198-5g | 5g | 85 | GBCBIO |
250198-25g | 25g | 260 | GBCBIO |
250198-100g | 100g | 540 | GBCBIO |
250198-100g | 100g | 950 | Sigma |
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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