1-(4-METHYL-2-THIENYL)ETHANONE
2-Acetyl-4-methylthiophene
CAS: 13679-73-7
Molecular Formula: C7H8OS
1-(4-METHYL-2-THIENYL)ETHANONE - Names and Identifiers
| Name | 2-Acetyl-4-methylthiophene |
| Synonyms | AI3-61742 CHEMBRDG-BB 4004647 2-ACETYL-4-METHYLTHIOPHENE 2-Acetyl-4-methylthiophene 1-(4-METHYL-2-THIENYL)ETHANONE 1-(4-methyl-2-thienyl)ethan-1-one 1-(4-Methyl-2-thienyl)ethan-1-one 1-(4-methylthiophen-2-yl)ethanone Ethanone, 1-(4-methyl-2-thienyl)- 1-(4-Methyl-thiophen-2-yl)-ethanone |
| CAS | 13679-73-7 |
| EINECS | 237-180-7 |
| InChI | InChI=1/C7H8OS/c1-5-3-7(6(2)8)9-4-5/h3-4H,1-2H3 |
1-(4-METHYL-2-THIENYL)ETHANONE - Physico-chemical Properties
| Molecular Formula | C7H8OS |
| Molar Mass | 140.2 |
| Density | 1.224g/mLat 25°C(lit.) |
| Boling Point | 108-109°C(lit.) |
| Flash Point | 221°F |
| Vapor Presure | 0.0461mmHg at 25°C |
| BRN | 111378 |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Refractive Index | n20/D 1.5600(lit.) |
| MDL | MFCD00027395 |
1-(4-METHYL-2-THIENYL)ETHANONE - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R36 - Irritating to the eyes R43 - May cause sensitization by skin contact |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| Packing Group | III |
1-(4-METHYL-2-THIENYL)ETHANONE - Introduction
2-Acetyl-4-methylthiobenzene, also known as methyl orange, is an organic compound. The following is a description of the properties, uses, preparation and safety information of the compound:
Nature:
2-Acetyl-4-methylthiobenzene is a colorless to pale yellow liquid with a strong aromatic odor. Its chemical formula is C9H10O and its relative molecular mass is 134.18. This compound has a high density and is soluble in most organic solvents, but is poorly soluble in water. It can volatilize at room temperature.
Use:
2-Acetyl-4-methylthiobenzene is widely used in the dye industry, especially as a dye for dyeing cellulosic materials. Methyl orange is also used to prepare liquid flame agents and colorants in some orange inks. In addition, it is also used as a chemical reagent for organic synthesis and laboratory research.
Preparation Method:
There are many preparation methods of 2-acetyl -4-methyl thiobenzene. The more common method is by sulfurization of p-acetyltoluene. The specific step is etching p-acetyltoluene with sulfur to obtain 2-acetyl-4-methylthiobenzene. During the preparation process, attention should be paid to the operating conditions and reaction temperature.
Safety Information:
2-acetyl -4-methyl thiobenzene is generally not harmful to human body under normal operating conditions. However, it is irritating and can cause inflammation when in contact with the skin and eyes. Therefore, direct contact should be avoided when using, avoid inhaling its vapor, and ensure good ventilation conditions. When storing and handling, it should be kept in a sealed container, away from ignition and heat sources. If taken by mistake or related health problems occur, seek medical attention immediately.
Nature:
2-Acetyl-4-methylthiobenzene is a colorless to pale yellow liquid with a strong aromatic odor. Its chemical formula is C9H10O and its relative molecular mass is 134.18. This compound has a high density and is soluble in most organic solvents, but is poorly soluble in water. It can volatilize at room temperature.
Use:
2-Acetyl-4-methylthiobenzene is widely used in the dye industry, especially as a dye for dyeing cellulosic materials. Methyl orange is also used to prepare liquid flame agents and colorants in some orange inks. In addition, it is also used as a chemical reagent for organic synthesis and laboratory research.
Preparation Method:
There are many preparation methods of 2-acetyl -4-methyl thiobenzene. The more common method is by sulfurization of p-acetyltoluene. The specific step is etching p-acetyltoluene with sulfur to obtain 2-acetyl-4-methylthiobenzene. During the preparation process, attention should be paid to the operating conditions and reaction temperature.
Safety Information:
2-acetyl -4-methyl thiobenzene is generally not harmful to human body under normal operating conditions. However, it is irritating and can cause inflammation when in contact with the skin and eyes. Therefore, direct contact should be avoided when using, avoid inhaling its vapor, and ensure good ventilation conditions. When storing and handling, it should be kept in a sealed container, away from ignition and heat sources. If taken by mistake or related health problems occur, seek medical attention immediately.
Last Update：2024-04-10 22:29:15
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