1-(5-methyl-2-thienyl)ethan-1-one
2-Acetyl-5-methylthiophene
CAS: 13679-74-8
Molecular Formula: C7H8OS
1-(5-methyl-2-thienyl)ethan-1-one - Names and Identifiers
| Name | 2-Acetyl-5-methylthiophene |
| Synonyms | 5-Methyl-2-acetylthiophene 2-Acetyl-5-methylthiophene 1-(5-methyl-2-thienyl)-ethanon 1-(5-Methyl-2-thienyl)ethanone 1-(5-methyl-2-thiophenyl)ethanone 1-(5-Methyl-2-thienyl)ethan-1-one 1-(5-methylthiophen-2-yl)ethanone 1-(5-methyl-2-thienyl)ethan-1-one Ethanone, 1-(5-methyl-2-thienyl)- 1-(5-Methyl-thiophen-2-yl)-ethanone |
| CAS | 13679-74-8 |
| EINECS | 237-181-2 |
| InChI | InChI=1/C7H8OS/c1-5-3-4-7(9-5)6(2)8/h3-4H,1-2H3 |
1-(5-methyl-2-thienyl)ethan-1-one - Physico-chemical Properties
| Molecular Formula | C7H8OS |
| Molar Mass | 140.2 |
| Density | 1.106g/mLat 25°C(lit.) |
| Melting Point | 24-28°C(lit.) |
| Boling Point | 65-67°C1mm Hg(lit.) |
| Flash Point | >230°F |
| JECFA Number | 2107 |
| Vapor Presure | 0.0517mmHg at 25°C |
| Appearance | Low Melting Crystalline Mass, Powder or Crystals |
| Specific Gravity | 1.119 |
| Color | White to pale yellow |
| BRN | 110854 |
| Storage Condition | under inert gas (nitrogen or Argon) at 2–8 °C |
| Sensitive | Light Sensitive |
| Refractive Index | n20/D 1.561(lit.) |
1-(5-methyl-2-thienyl)ethan-1-one - Risk and Safety
| Risk Codes | 20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S36/37 - Wear suitable protective clothing and gloves. S22 - Do not breathe dust. |
| UN IDs | UN 3335 |
| WGK Germany | 3 |
| RTECS | OB4972000 |
| HS Code | 29349990 |
| Hazard Note | Irritant |
| Hazard Class | STENCH |
1-(5-methyl-2-thienyl)ethan-1-one - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
Last Update：2024-04-09 21:11:58
