-
Name
3-METHOXYCATECHOL
- EINECS
- CAS No. 934-00-9
- Article Data77
- CAS DataBase
- Density 1.27g/cm3
- Solubility
-
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
- 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
- PSA 49.69000
- LogP 1.10640
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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