2689-70-5

• 常用中文名：4-甲基-3-氧代四氢噻吩-2-甲酸甲酯
• 常用英文名：METHYL 4-METHYL-3-OXOTETRAHYDROTHIOPHENE-2-CARBOXYLATE
• CAS号：2689-70-5
• 分子式：C₇H₁₀O₃S
• 分子量：174.21700
• 发布时间：2018-12-25 22:06:14
• 更新时间：2026-07-18 10:22:04

名称

• 中文名: 4-甲基-3-氧代四氢噻吩-2-甲酸甲酯
• 英文名: methyl 4-methyl-3-oxothiolane-2-carboxylate
• 中文别名: 4-甲基-3-氧代四氢噻吩-2-羧酸甲酯; 阿替卡因杂质22; 阿替卡因标准品009; 2-甲基-3-氧代-四氢噻吩-2-碳酸甲酯; 阿替卡因杂质9
• 英文别名: 3-oxotetrahydrothiophene; Methyl 4-methyl-3-oxo-tetrahydrothiophene-2-carboxylate; 2-Methoxycarbonyl-4-methyl-3-oxotetrahydrothiophene; Methyl tetrahydro-4-methyl-3-oxothiophene-2-cbonate; ticaine-009; 4-methyl-3-oxotetrahydro-2-thiophencarboxylic acid methyl ester; 4-methyl-3-oxo-tetrahydro-thiophene-2-carboxylic acid methyl ester; 4-Methyl-2-carbomethoxy-3-oxothiophan; Methyl 2-Methyl-3-Oxo-Tetrahydrothiophene-2-CbonateMethyl 2-Methyl-3-Oxo-Tetrahydrothiophene-2-Cbonate; Methyl 2-Methyl-3-Oxo-Tetrahydrothiophene-2-Cbonate; Methyl 4-methyl-3-oxo-2,3,4,5-tetrahydrothiophene-2-cboxylate; methyl tetrahydro-4-methyl-3-oxothiophene-2-carboxylate; 2-Thiophenecboxylic acid, tetrahydro-4-methyl-3-oxo-, methyl ester; Methyl 4-methyl-3-oxo-tetrahydrothiophene-2-cboxylate; ticaine Impurity 22

物化性质

• 密度: 1.224
• 沸点: 254ºC
• 分子式: C₇H₁₀O₃S
• 分子量: 174.21700
• 闪点: 116ºC
• 精确质量: 174.03500
• PSA: 68.67000
• LogP: 0.48000

安全

• 海关编码: 2934999090

合成路线

38293-65-1 ~% 2689-70-5

文献：Sharps Associates Patent: US3946111 A1, 1976 ;

110-89-4 2365-48-2 80-62-6 ~% 2689-70-5

文献：Byk Gulden Lomberg Chemische Fabrik GmbH Patent: US4272507 A1, 1981 ;

2365-48-2 80-62-6 ~94% 2689-70-5

文献：Liu, Hsing-Jang; Ngooi, Teng Ko Canadian Journal of Chemistry, 1982 , vol. 60, p. 437 - 439

海关

海关编码	2934999090
中文概述	2934999090. 其他杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%
申报要素	品名, 成分含量, 用途
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%