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Cas Database |
| Name |
3-Methoxycatechol |
EINECS | N/A |
| CAS No. | 934-00-9 | Density | 1.27g/cm3 |
| PSA | 49.69000 | LogP | 1.10640 |
| Solubility | N/A | Melting Point |
38-43 °C(lit.) |
| Formula | C7H8 O3 | Boiling Point |
146-147 °C15 mm Hg(lit.) |
| Molecular Weight | 140.139 | Flash Point | 119.5°C |
| Transport Information | N/A | Appearance | SLIGHTLY BEIGE TO LIGHT BROWN CRYSTALLINE SOLID |
| Safety | Questionable carcinogen with experimental neoplastigenic data reported. When heated to decomposition it emits acrid smoke and irritating vapors. | Risk Codes | 36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
|
| Synonyms |
Pyrocatechol,3-methoxy- (6CI,7CI,8CI); 1,2-Dihydroxy-3-methoxybenzene; 1-O-Methylpyrogallol;2,3-Dihydroxyanisole; 2-Hydroxy-3-methoxyphenol; 3-Methoxy-1,2-benzenediol;3-Methoxy-1,2-dihydroxybenzene; 3-Methoxy-o-hydroquinone; 3-Methoxycatechol;3-Methoxypyrocatechol; 6-Methoxycatechol; NSC 66525; Pyrogallol 1-methyl ether;Pyrogallol 1-monomethyl ether |
Article Data | 77 |
3-Methoxycatechol Chemical Properties
IUPAC Name: 3-Methoxybenzene-1,2-diol
Synonyms: 3-Methoxy-1,2-benzenediol ; 1,2-Benzenediol, 3-methoxy- ; 3-Methoxybenzene-1,2-diol ; 1,2-Dihydroxy-3-methoxybenzene
Product Categories: Aromatic Ethers
CAS NO: 934-00-9
Molecular Formula of 3-Methoxycatechol (CAS NO.934-00-9) : C7H8O3
Molecular Weight of 3-Methoxycatechol (CAS NO.934-00-9) : 140.14
Molecular Structure of 3-Methoxycatechol (CAS NO.934-00-9) : 
EINECS: 213-276-4
Index of Refraction: 1.579
Surface Tension: 50.4 dyne/cm
Density: 1.27 g/cm3
Flash Point: 119.5 °C
Enthalpy of Vaporization: 52.65 kJ/mol
Boiling Point: 268.1 °C at 760 mmHg
Vapour Pressure: 0.00476 mmHg at 25°C
Melting point: 38-43 °C(lit.)
Appearance:slightly beige to light brown crystalline solid
Appearance: white crystal
3-Methoxycatechol Uses
3-Methoxycatechol (CAS NO.934-00-9) is used in organic synthesis.
3-Methoxycatechol Production
Raw materials :Hydrogen peroxide-->3-Methoxysalicylaldehyde
2 - Hydroxy -3 - methoxybenzaldehyde soluble in sodium hydroxide solution,Adding Hydrogen peroxide dropwise with stirring, the temperature maintained between 45-50°C. And then saturated with sodium chloride at room temperature, with ether extraction, extraction steamed and dried to remove ether by vacuum distillation, collecting distillate at 136-138°C(2.93kPa) , 3 - Methoxy-catechol is obtained. Yield of 68-80%.
3-Methoxycatechol Safety Profile
Questionable carcinogen with experimental neoplastigenic data reported. When heated to decomposition it emits acrid smoke and irritating vapors.
Hazard Codes 
Xi
Risk Statements 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
WGK Germany 3
RTECS CZ9002750
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