Hydroxy naphthol blue disodium，是钙的金属指示剂和碱土金属离子的比色试剂 ( Λmax = 650 nm)。在 12 和 13 之间的 pH 值范围内，指示剂溶液在钙离子存在下呈淡红色，在 EDTA 二钠存在下呈深蓝色。
| Cas No. | 165660-27-5 |
| 别名 | 羟基萘酚蓝二钠盐 |
| 分子式 | C20H12N2Na2O11S3 |
| 分子量 | 598.49 |
| 储存条件 | Store at -20°C |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while. |
| Shipping Condition | Evaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request |
| 产品描述 | Hydroxy naphthol blue disodium, an azo dye, is a metal indicator for calcium and a colorimetric reagent for alkaline earth metal ions ( Λmax = 650 nm). In the pH range between 12 and 13, the solution of the indicator is reddish pink in the presence of calcium ion and to deep blue in the presence of disodium EDTA[1]. [1]. Motoki Goto, et al. Colorimetric detection of loop-mediated isothermal amplification reaction by using hydroxy naphthol blue. Biotechniques. 2009 Mar;46(3):167-72. |
