37920
Sigma
6,8-Dihydroxy-1,3-pyrenedisulfonic acid disodium salt
BioChemika, for fluorescence, ≥97.0% (HPCE)
| Synonym: | DHPDS, Disodium 6,8-dihydroxy-1,3-pyrenedisulfonate |
| CAS Number: | 61255-63-8 |
| Linear Formula: | C16H8Na2O8S2 |
| Molecular Weight: | 438.34 |
| Beilstein Registry Number: | 8962638 |
| MDL number: | MFCD00800283 |
| PubChem Substance ID: | 24863224 |
Description
| Application | suitable as pH-indicator |
| Other Notes | Highly water soluble pH indicator for the physiological range1 |
Properties
| grade | for fluorescence |
| product line | BioChemika |
| assay | ≥97.0% (HPCE) |
| fluorescence | λex 405 nm; λem 456 nm in 0.1 M citrate pH 3.0 |
| λex 458 nm; λem 498 nm in 0.1 M Tris pH 8.0 | |
| pKa | 7.33 |
| 8.53 | |
| mp | ≥250 °C(lit.) |
| solubility | DMF: soluble |
| H2O: soluble | |
| methanol: soluble |
Safety
| Personal Protective Equipment | dust mask type N95 (US), Eyeshields, Gloves |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26 |
| WGK Germany | 3 |
References
| Cited Reference | 1. O.S. Wolfbeis et al. Fresenius J. Anal. Chem. 314, 119, (1983) |
