2-Pyrrolyl methyl ketone
2-acetylpyrrole
CAS: 1072-83-9
Molecular Formula: C6H7NO
2-Pyrrolyl methyl ketone - Names and Identifiers
2-Pyrrolyl methyl ketone - Physico-chemical Properties
| Molecular Formula | C6H7NO |
| Molar Mass | 109.13 |
| Density | 1.1143 (rough estimate) |
| Melting Point | 88-93 °C (lit.) |
| Boling Point | 220 °C (lit.) |
| Flash Point | 220°C |
| JECFA Number | 1307 |
| Solubility | Soluble in water, ethanol, ether |
| Vapor Presure | 0.11mmHg at 25°C |
| Appearance | White to light brown crystals |
| Color | White to beige |
| Odor | roasted odor |
| BRN | 1882 |
| pKa | 14.86±0.50(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Sensitive | Sensitive to air |
| Refractive Index | 1.5040 (estimate) |
| MDL | MFCD00005220 |
| Physical and Chemical Properties | Melting Point: 85 - 90 Boiling Point: 220 |
| Use | Used in coffee, tea, hazelnut, nuts food flavor |
2-Pyrrolyl methyl ketone - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R37/38 - Irritating to respiratory system and skin. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| RTECS | OB5970000 |
| TSCA | Yes |
| HS Code | 29339990 |
| Hazard Note | Harmful |
2-Pyrrolyl methyl ketone - Upstream Downstream Industry
| Raw Materials | N,N-Dimethylacetamide N,N-Dimethylacetamide pyrrole |
2-Pyrrolyl methyl ketone - Introduction
Soluble in water, soluble in most organic solvents, soluble in ethanol and ether (20°C), soluble in alcohol and propylene glycol.
Last Update：2022-10-16 17:11:53
2-Pyrrolyl methyl ketone - Reference Information
| FEMA | 3202 | METHYL 2-PYRROLYL KETONE |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| content analysis | determined by "polar column" method in gas chromatography (GT-10-4). |
| use limit | FEMA:50 mg/kg. Moderate limit (FDA § 172.515,2000). |
| use | GB 2760 --- 1996 stipulates that it is temporarily allowed to use food spices. Mainly used to prepare baked food flavors. used in edible flavors used in coffee, tea, hazelnut and nut flavors |
| Production method | In the presence of zinc chloride, it is obtained by the reaction of pyrrole, sodium acetate and anhydrous acetic acid. Or N-acetylpyrrole is sealed in a human tube and heated at 250~280 ℃. |
Last Update：2024-04-10 22:29:15
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Raw Materials for 2-Pyrrolyl methyl ketone