Bromocresol green
Update:2014/10/9 9:58:15
| Item: | Bromocresol green | ||
| Synonym: | 溴甲酚蓝；3，3’,5,5’-四溴间甲酚磺酞；Bromocresol blue;3, 3’,5,5’-Tetrabromo-m-cresolsulphthalein | ||
| CAS No.: | 76-60-8 | Special Grade: | ACS Grade |
| Formula: | C21H14Br4O5S | M.W.: | 698.01 |
Order
| Product No. | Size | Price | Brand |
| 114359-5g | 5g | 89 | GBCBIO |
| 114359-10g | 10g | 140 | GBCBIO |
| 114359-5g | 5g | 440 | Sigma |
Introduction
| Dye content(%)........................................................................>98 visual transition interval ...........................3.8 - 5.4, yellow to blue UV absorption.......................................................... |
| 白色至浅黄色结晶或浅褐色粉末。内酯式结晶体，熔点为218～219℃，微溶于水，溶于乙醇，不溶于醚。其钠盐溶于水。 酸碱指示剂，pH值3.8（黄）～5.4（蓝）。其钠盐水溶液用于分光光度法测定pH值的显色剂。用作薄层色谱法测定脂族羟酸和生物碱的试剂及光度法测定季铵阳离子的萃取分离剂。 |
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