4-Nitrosophenol
- CAS No.
- 104-91-6
- Chemical Name:
- 4-Nitrosophenol
- Synonyms
- Nsc3124;Aids159812;Aids-159812;Quinomeoxime;quinoneoxime;Nitrosophenol;4-Nitrosofenol;4-NITROSOPHENOL;quinonemonoxime;p-nitroso-pheno
- CBNumber:
- CB9182464
- Molecular Formula:
- C6H5NO2
- Molecular Weight:
- 123.11
- MDL Number:
- MFCD00002329
- MOL File:
- 104-91-6.mol
Melting point | 132-144°C |
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Boiling point | 229.19°C (rough estimate) |
Density | 1.3147 (rough estimate) |
vapor pressure | 0.003Pa at 20℃ |
refractive index | 1.5423 (estimate) |
solubility | soluble in Methanol |
form | powder to crystal |
pka | pK1:6.48 (25°C) |
color | Pale-yellow, orthorhombic needles |
Water Solubility | <0.1 g/100 mL at 21 ºC |
Merck | 14,6642 |
Stability | Stability Flammable. Incompatible with strong oxidizing agents. Explodes when heated, or in contact with acids or alkalies. |
LogP | 1.1 at 20℃ |
CAS DataBase Reference | 104-91-6(CAS DataBase Reference) |
EWG's Food Scores | 2 |
FDA UNII | 55EB58H2UP |
NIST Chemistry Reference | Phenol, 4-nitroso-(104-91-6) |
EPA Substance Registry System | p-Nitrosophenol (104-91-6) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() ![]() ![]() ![]() ![]() GHS02,GHS05,GHS07,GHS08,GHS09 |
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Signal word | Danger |
Hazard statements | H228-H302-H315-H318-H341-H411 |
Precautionary statements | P241-P301+P312-P280 |
Hazard Codes | Xn,N |
Risk Statements | 21/22-40-41-68-51/53-22 |
Safety Statements | 15-24/25-26-61-49-47-36/37/39 |
RIDADR | 3236 |
RTECS | SM4725000 |
HazardClass | 4.1 |
PackingGroup | II |
HS Code | 2908990000 |
Hazardous Substances Data | 104-91-6(Hazardous Substances Data) |
Toxicity | mmo-sat 50 mg/plate FCTXAV 18,523,80 |
4-Nitrosophenol Chemical Properties,Uses,Production
Chemical Properties
black solid
Uses
Dyes.
Hazard
Dangerous fire and explosion risk, reacts violently with acids and alkalies, may explode spontaneously, intraplant transport must be in tightly covered steel barrels.
Safety Profile
Poison by parented and intraperitoneal routes. Mutation data reported. An irritant and sensitizer. Many nitroso compounds are carcinogens. A very dangerous fire and explosion hazard. When exposed to heat or flame, it burns explosively. Contamination by acid or alkali may cause ignition . Can heat spontaneously and cause fire. When heated to decomposition it emits toxic fumes of NOx. See also NITROSO COMPOUNDS.
Purification Methods
4-Nitrosophenol forms yellow crystals from xylene, *C6H6 (m ~144o) or Et2O (m 128-129o, dec). [Beilstein 7 H 622, 7 II 574, 7 III 3367.]
4-Nitrosophenol Preparation Products And Raw materials
Raw materials
Preparation Products
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