
626-03-9
| Name | 2,4-Dihydroxypyridine |
| CAS | 626-03-9 |
| EINECS(EC#) | 210-924-8 |
| Molecular Formula | C5H5NO2 |
| MDL Number | MFCD00006273 |
| Molecular Weight | 111.1 |
| MOL File | 626-03-9.mol |
Chemical Properties
| Appearance | white to yellow-beige crystals or cryst. powder |
| Melting point | 272-276 °C (lit.) |
| Boiling point | 208.19°C (rough estimate) |
| density | 1.3113 (rough estimate) |
| refractive index | 1.4260 (estimate) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | DMSO, Methanol |
| form | powder |
| pka | pK1:1.37(+1);pK2:6.45(0);pK3:13(+1) (20°C) |
| color | light yellow |
| Water Solubility | 6.211g/L(20 ºC) |
| Detection Methods | HPLC,NMR |
| BRN | 108533 |
| InChI | InChI=1S/C5H5NO2/c7-4-1-2-6-5(8)3-4/h1-3H,(H2,6,7,8) |
| InChIKey | ZEZJPIDPVXJEME-UHFFFAOYSA-N |
| SMILES | C1(=O)NC=CC(O)=C1 |
| CAS DataBase Reference | 626-03-9(CAS DataBase Reference) |
Safety Data
| Symbol(GHS) | ![]() GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 |
| Hazard Codes | Xi |
| Risk Statements | |
| Safety Statements | |
| WGK Germany | 3 |
| RTECS | UV1146800 |
| Hazard Note | Irritant |
| HazardClass | IRRITANT |
| HS Code | 29339900 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
