供货周期: | 现货 |
品牌: | Sigma-Aldrich |
型号: | AR级别,99% |
货号: | M101205 |
Product Name: Methyl red
别名: | 甲基红 ;甲红,烷红,甲烷红,对二甲氨基偶氮苯邻羧酸,酸性红2 |
CAS号: | 493-52-7 |
分子式: | C15H15N3O2 |
分子量: | 269.30 |
EINECS编号: | 207-776-1 |
MDL号: | MFCD00002425 |
介绍: | 几乎不溶于水,溶于乙醇。乙醇溶液经长时间保存后,可因羧基起酯化作用而使灵敏度显著降低。 |
用途: | 原生动物活体染色,酸碱指示剂 (pH 4.4 to 6.2) ,临床血清蛋白生化检验。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。 |
沸点: | 100 °C |
特定比重: | 0.839 |
贮存: | 密封保存。 |
敏感性: | 对湿度敏感 |
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