Name | phenazopyridine |
Synonyms | Gastracid Gastrotest Phenazopryidine phenazopyridine 2,6-diamino-3-phenylazopyridine 3-(phenylazo)-6-pyridinediamine 2,6-diamino-3-(phenylazo)-pyridin 2,6-Diamino-3-(phenylazo)pyridine 3-(Phenylazo)-2,6-Pyridinediamine 3-phenylazopyridine-2,6-diyldiamine 3-[(E)-Phenyldiazenyl]-2,6-pyridinediamine |
CAS | 94-78-0 |
EINECS | 202-363-2 |
InChI | InChI=1/C6H5N2/c7-8-6-4-2-1-3-5-6/h1-5H |
InChIKey | QPFYXYFORQJZEC-FOCLMDBBSA-N |
Molecular Formula | C11H11N5 |
Molar Mass | 213.24 |
Density | 1.2597 (rough estimate) |
Melting Point | 136-137° |
Boling Point | 343.23°C (rough estimate) |
Flash Point | 32.496°C |
Water Solubility | 904.20g/L(25 ºC) |
Solubility | DMSO (Slightly), Methanol (Slightly) |
Vapor Presure | 12.044mmHg at 25°C |
Appearance | Solid |
Color | Red crystals |
pKa | pKa 5.15(H2O,t =25) (Uncertain) |
Storage Condition | Amber Vial, -20°C Freezer, Under inert atmosphere |
Stability | Light Sensitive |
Refractive Index | 1.6880 (estimate) |
Toxicity | LD50 ipr-rat: 560 mg/kg JPETAB 51,200,34 |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |