| Bioactivity | 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]. |
| Name | Hydroxy naphthol blue disodium |
| CAS | 165660-27-5 |
| Formula | C20H12N2Na2O11S3 |
| Molar Mass | 598.49 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
| Reference | [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. |
Hydroxy naphthol blue disodium
CAS: 165660-27-5 F: C20H12N2Na2O11S3 W: 598.49
Hydroxy naphthol blue disodium, an azo dye, is a metal indicator for calcium and a colorimetric reagent for alkaline ear
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