2-methoxy-4-vinylphenol (vinylguaiacol)
2-Methoxy-4-vinylphenol
CAS: 7786-61-0
Molecular Formula: CH3OC6H3(CH=CH2)OH
2-methoxy-4-vinylphenol (vinylguaiacol) - Names and Identifiers
| Name | 2-Methoxy-4-vinylphenol |
| Synonyms | 2-metoxy-4-vinyl-phenol 2-Methoxy-4-vinylphenol 4-ethenyl-2-methoxy-pheno 4-Ethenyl-2-methoxyphenol 4-ethenyl-2-methoxy-Phenol 4-Hydroxy-3-methoxystyrene 2-methoxy-4-vinylphenol (vinylguaiacol) 4-Vinyl-2-methoxyphenol (4-vinylguaiacol) 2-Methoxy-4-vinylphenol (4-vinylguaiacol) |
| CAS | 7786-61-0 |
| EINECS | 232-101-2 |
| InChI | InChI=1/C9H10O2/c1-3-7-4-5-8(10)9(6-7)11-2/h3-6,10H,1H2,2H3 |
2-methoxy-4-vinylphenol (vinylguaiacol) - Physico-chemical Properties
| Molecular Formula | CH3OC6H3(CH=CH2)OH |
| Molar Mass | 150.17 |
| Density | 1.089g/cm3 |
| Melting Point | 25-29°C |
| Boling Point | 245°C at 760 mmHg |
| Specific Rotation(α) | n20/D 1.582 (lit.) |
| Flash Point | 111.3°C |
| Water Solubility | Miscible with water. |
| Solubility | Insoluble in water, soluble in oils, miscible in ethanol. |
| Vapor Presure | 0.0188mmHg at 25°C |
| Appearance | morphology neat |
| Color | Colourless to Off-White Oil to Low-Melting |
| BRN | 2044521 |
| pKa | 10.00±0.31(Predicted) |
| Storage Condition | 2-8°C |
| Stability | Light Sensitive |
| Sensitive | Easily absorbing moisture |
| Refractive Index | 1.578 |
| MDL | MFCD00015437 |
| Physical and Chemical Properties | Chemical properties colorless to light straw yellow oily liquid. It has a strong aroma of spices, cloves and fermentation, with the smell of fried peanuts. Insoluble in water, soluble in oil, miscible in ethanol. Boiling point 224 ℃ or 100 ℃(667Pa). Natural products are found in the volatiles of corn alcohol fermentation. |
| Use | Uses GB 2760-1996 provides for the permitted use of food flavors. |
2-methoxy-4-vinylphenol (vinylguaiacol) - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | 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 | SL8205000 |
| TSCA | Yes |
| HS Code | 29095000 |
2-methoxy-4-vinylphenol (vinylguaiacol) - Upstream Downstream Industry
2-methoxy-4-vinylphenol (vinylguaiacol) - Nature
| FEMA | 2675 | 2-METHOXY-4-VINYLPHENOL |
| refractive index | n20/D 1.582(lit.) |
| flash point | >230 °F |
| storage conditions | 2-8°C |
| acidity coefficient (pKa) | 10.00±0.31(Predicted) |
| morphology | neat |
| water solubility | Miscible with water. |
| JECFA Number | 725 |
| BRN | 2044521 |
| NIST chemical information | 2-Methoxy-4-vinylphenol(7786-61-0) |
| EPA chemical information | Phenol, 4-ethenyl-2-methoxy- (7786-61-0) |
Last Update：2024-04-09 20:52:54
2-methoxy-4-vinylphenol (vinylguaiacol) - Uses and synthesis methods
use
4-Vinyl-2-methoxyphenol is an aromatic substance and one of the compounds that cause the natural aroma of buckwheat. It is also one of the major pyrolysis products of (E)-N-[(4-hydroxy-3-methoxy)-phenylethyl]-3-[(3-methoxy-4-O-β-D-glucopyranoxy) phenyl]; a new glycoside in acrylamide tobacco.
Toxicity
can be safely used in food (FDA,& sect;172.515,2000).
use limited
FEMA(mg/kg): soft drinks 0.25~3.0; Cold drinks 0.25~11; Candy and baked goods 1.0~8.0.
production method
It is hydrolyzed by the reaction of vanillin and acetic anhydride with sodium acetate to obtain 3-methoxy-4-hydroxycinnamic acid, and then heated with quinoline to decarboxylate in the presence of hydroquinone.
Last Update：2024-04-09 21:54:55
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View History
Raw Materials for 2-methoxy-4-vinylphenol (vinylguaiacol)
Sodium acetate trihydrate
Quinoline
trans-Cinnamic acid
4-(1-HYDROXYETHYL)-2-METHOXYPHENOL
Acetovanillone
Quinoline
trans-Cinnamic acid
4-(1-HYDROXYETHYL)-2-METHOXYPHENOL
Acetovanillone
Downstream Products for 2-methoxy-4-vinylphenol (vinylguaiacol)