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| 货号 (SKU) | 包装规格 | 是否现货 | 价格 | 数量 |
|---|---|---|---|---|
| A113376-1g |
1g |
现货 ![]() |
| |
| A113376-5g |
5g |
现货 ![]() |
| |
| A113376-25g |
25g |
现货 ![]() |
| |
| A113376-100g |
100g |
现货 ![]() |
|
| 别名 | 2-乙酰基-5-甲基硫代苯 |
|---|---|
| 英文别名 | DTXSID10159932 | MFCD00014529 | AKOS000200731 | 97YBD5W80B | 2HS3I278W9 | InChI=1/C7H8OS/c1-5-3-4-7(9-5)6(2)8/h3-4H,1-2H3 | PS-6271 | AB01148 | EINECS 237-181-2 | 4'-(Benzyloxy) acetophenone | FT-0610963 | Methylthienylcetone | 5-methyl-2-acetylthiophene |
| 规格或纯度 | ≥96%(GC) |
| 英文名称 | 2-Acetyl-5-methylthiophene |
| 储存温度 | 充氩 |
| 运输条件 | 常规运输 |
| 产品介绍 |
description: 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: 2-Acetyl-5-methylthiophene may be used in the preparation of: • 2-ethyl-5-methylthiophene • (5-methylthiophen-2-yl)glyoxal • (2E)-1-(5-methylthiophen-2-yl)-3-(pyridin-3-yl)prop-2-en-1-one • ethyl 3-(5-methylthiophen-2-yl)-3-oxopropanoate |
| 纯度 | ≥96%(GC) |
| PubChem SID | 488186199 |
|---|---|
| EC号 | 237-181-2 |
| IIUPAC Name | 1-(5-methylthiophen-2-yl)ethanone |
| INCHI | 1S/C7H8OS/c1-5-3-4-7(9-5)6(2)8/h3-4H,1-2H3 |
| InChi Key | YOSDTJYMDAEEAZ-UHFFFAOYSA-N |
| Smiles | CC1=CC=C(S1)C(=O)C |
| Isomeric SMILES | CC1=CC=C(S1)C(=O)C |
| UN Number | 3335 |
| 分子量 | 140.2 |
| Beilstein号 | 17(3/4)4550 |
| Reaxy-Rn | 110854 |
| Reaxys-RN link address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=110854&ln= |
| 密度 | 1.106 |
|---|---|
| 敏感性 | 对空气敏感 |
| 凝固点 | 24 °C |
| 折光率 | 1.561 |
| 闪点(℃) | 96 °C |
| 沸点 | 65-67°C |
| 熔点 | 24-28°C |
| 分子量 | 140.200 g/mol |
| XLogP3 | 2.000 |
| 氢键供体数Hydrogen Bond Donor Count | 0 |
| 氢键受体数Hydrogen Bond Acceptor Count | 2 |
| 可旋转键计数Rotatable Bond Count | 1 |
| 精确质量Exact Mass | 140.03 Da |
| 单同位素质量Monoisotopic Mass | 140.03 Da |
| 拓扑极表面积Topological Polar Surface Area | 45.300 Ų |
| 重原子数Heavy Atom Count | 9 |
| 形式电荷Formal Charge | 0 |
| 复杂度Complexity | 122.000 |
| 同位素原子数Isotope Atom Count | 0 |
| 定义的原子立体中心计数Defined Atom Stereocenter Count | 0 |
| 未定义的原子立体中心计数Undefined Atom Stereocenter Count | 0 |
| 定义的键立体中心计数Defined Bond Stereocenter Count | 0 |
| 未定义的键立体中心计数Undefined Bond Stereocenter Count | 0 |
| 所有立体化学键的总数The total count of all stereochemical bonds | 0 |
| 共价键合单元计数Covalently-Bonded Unit Count | 1 |
| 象形图 | GHS07 |
|---|---|
| 信号词 | 警告 |
| WGK Germany | 3 |
| RTECS | OB4972000 |
| 个人防护装备 | Eyeshields,Gloves,type N95 (US),type P1 (EN143) respirator filter |