Name | 4-Phenylurazole |
Synonyms | AURORA KA-3647 4-Phenylurazole 4-PHENYLURAZOLE 4-phenyl urazole 4-PHENYL-1,2,4-TRIAZOLANE-3,5-DIONE 2,4-Triazolidine-3,5-dione,4-phenyl-1 4-Phenyl-1,2,4-triazolidine-3,5-dione 4-PHENYL-1,2,4-TRIAZOLIDINE-3,5-DIONE 1,2,4-Triazolidine-3,5-dione,4-phenyl- 1,2,4-Triazolidine-3,5-dione, 4-phenyl- 4-PHENYLTETRAHYDRO-1,2,4-TRIAZOLE-3,5-DIONE |
CAS | 15988-11-1 |
EINECS | 240-127-0 |
InChI | InChI=1/C8H7N3O2/c12-7-9-10-8(13)11(7)6-4-2-1-3-5-6/h1-5H,(H,9,12)(H,10,13) |
InChIKey | GOSUFRDROXZXLN-UHFFFAOYSA-N |
Molecular Formula | C8H7N3O2 |
Molar Mass | 177.16 |
Density | 1.3393 (rough estimate) |
Melting Point | 207-209 °C (lit.) |
Boling Point | 309.07°C (rough estimate) |
Appearance | Pale yellow powder |
Color | White to Almost white |
BRN | 163361 |
pKa | 5.43±0.30(Predicted) |
Storage Condition | Inert atmosphere,2-8°C |
Refractive Index | 1.6500 (estimate) |
MDL | MFCD00005226 |
Physical and Chemical Properties | Colorless columnar crystals. Melting Point 209 °c. Soluble in ethanol, insoluble in ether. It turned dark red in case of oxidant. |
Use | As a stabilizer for X-ray film |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 29339990 |
colorless columnar crystals. Melting point of 207~209 ° C, soluble in ethanol, insoluble in ether. It turned dark red in case of oxidant.
hydrazine hydrate is condensed with diethyl carbonate to obtain hydrazino ethyl carbonate, which is added with phenyl isocyanate, and then subjected to alkali hydrolysis, acid analysis and cyclization.
stabilizer.