Name | 1,2,4-Trihydroxybenzene |
Synonyms | OXYHYDROQUINONE 1,2,4-Benzentril 1,2,4-Benzenetriol 1,3,4-Benzenetriol 2,5-Dihydroxyphenol benzene-1,2,3-triol benzene-1,2,4-triol Hydroquinone, hydroxy- 1,3,4-Trihydroxybenzene 1,2,4-Trihydroxybenzene 1,2,4-TRIHYDROXYBENZENE 2-Hydroxy-1,4-hydroquinone |
CAS | 533-73-3 |
EINECS | 208-575-1 |
InChI | InChI=1/C6H6O3/c7-4-2-1-3-5(8)6(4)9/h1-3,7-9H |
Molecular Formula | C6H6O3 |
Molar Mass | 126.11 |
Density | 1.488g/cm3 |
Melting Point | 140℃ |
Boling Point | 309°C at 760 mmHg |
Flash Point | 164.3°C |
Water Solubility | freely soluble |
Vapor Presure | 0.000361mmHg at 25°C |
Appearance | Color Plates from Et2O |
pKa | 9.58±0.10(Predicted) |
Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
Refractive Index | 1.676 |
Physical and Chemical Properties | Chemical properties The leaf-like crystals are obtained from ether. Melting point 140.5 ℃. Soluble in water, ethanol, ether, ethyl acetate, almost insoluble in chloroform, carbon disulfide, benzene. |
Use | 1,2, 4-benzenetriol is a metabolite of benzene. Intermediate in organic synthesis, absorbent for gas analysis. |
Hazard Symbols | Xn - Harmful |
Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S22 - Do not breathe dust. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
WGK Germany | 3 |
RTECS | DC4200000 |
TSCA | Yes |
HS Code | 2907 29 00 |
Toxicity | oms-hmn:lym 50 mmol/L CNREA8 45,2471,85 |
Raw Materials | 1,4-Benzoquinone 1,2,4-Triacetoxybenzene |
Downstream Products | 2,4,5-TRIHYDROXYBENZALDEHYDE 2,4,5-TRIHYDROXYBENZOIC ACID |