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2-乙酰基-5-甲基噻吩
2-Acetyl-5-methylthiophene
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| 产品编号 | 包装单位 | 单价(元) | 国内现货 | 国外库存 | 询价单 |
| 3270471 | 25 G | 3370 |
产品别名
13679-74-8
2-乙酰基-5-甲基噻吩
2-Acetyl-5-methylthiophene
结构式
基本信息
| Empirical Formula【经验(实验)分子式】 | C7H8OS |
| Molecular weight | 140.20 |
| EC number【EC 号】 | 237-181-2 |
| MDL number | MFCD00014529 |
| PubChem Substance ID【PubChem化学物质编号】 | 24877976 |
| NACRES | NA.22 |
| General description【一般描述】 | 2-Acetyl-5-methylthiophene is a volatile organic compound formed during the reaction between L-cysteine and dihydroxyacetone in glycerine or triglyceride solvent system. It can be prepared by reacting 2-methylthiophene with acetic anhydride. 2-Acetyl-5-methylthiophene undergoes palladium-catalyzed cross-coupling reaction with aryl bromides to form C-4 arylated product. It reacts with 1,2-bis(5-formyl-2-methylthiophen-3-yl)cyclopentene via Aldol condensation to form a chalcone with photochromic property. The standard molar enthalpies of combustion, formation and vaporization of 2-acetyl-5-methylthiophene are 4341.9 ± 1.8kJ/mol, 158.0 ± 2.1kJ/mol and 62.0 ± 2.6kJ/mol, respectively. |
| Application【应用】 | 2-Acetyl-5-methylthiophene may be used in the preparation of:
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产品性质
| Quality Level【质量水平】 | 200 |
| Assay【测定】 | 98% |
| refractive index【折射率】 | n |
| bp | 65-67 ℃/1 mmHg (lit.) |
| mp | 24-28 ℃ (lit.) |
| density | 1.106 g/mL at 25 ℃ (lit.) |
| SMILES string | CC(=O)c1ccc(C)s1 |
| InChI | 1S/C7H8OS/c1-5-3-4-7(9-5)6(2)8/h3-4H,1-2H3 |
| InChI key | YOSDTJYMDAEEAZ-UHFFFAOYSA-N |
| packaging【包装】 | 25 g in glass bottle |
安全信息
| Storage Class Code【储存分类代码】 | 13 - Non Combustible Solids |
| WGK | WGK 3 |
| Personal Protective Equipment【个人防护装备】 | Eyeshields, Gloves, type N95 (US) |
