19651-44-6

• 常用中文名：S-methyl-DL-cysteine
• 常用英文名：S-methyl-DL-cysteine
• CAS号：19651-44-6
• 分子式：C₄H₉NO₂S
• 分子量：135.18500
• 发布时间：2016-11-23 02:22:57
• 更新时间：2025-09-21 13:13:57

名称

• 英文名: S-methyl-DL-cysteine
• 英文别名: 4-chlorobenzenecarboximidothioic acid,methyl ester; S-methylthio-4-chlorobenzimidate hydroiodide; 1-carboxy-2-methylthioethylamine; 4-chlorophenylmethylthioimidate hydroiodide; S-methyl-4-chloroisothiobenzamide hydroiodide; methyl 4-chlorobenzenecarboximidothioate hydroiodide; S-methyl isothio-4-chlorobenzamide hydroiodide; methyl 4-chlorobenzene-1-carboximidothioate hydroiodide; methylcysteine; DL-S-methylcysteine; S-METHYL-CYSTEINE

物化性质

• 密度: 1.26g/cm3
• 沸点: 300.3ºC at 760 mmHg
• 分子式: C₄H₉NO₂S
• 分子量: 135.18500
• 闪点: 135.4ºC
• 精确质量: 135.03500
• PSA: 88.62000
• LogP: 0.46160
• 蒸汽压: 0.000267mmHg at 25°C
• 折射率: 1.539

安全

• 海关编码: 2930909090

合成路线

921-01-7 74-88-4 ~70% 19651-44-6

文献：Otto, Nicola; Opatz, Till Beilstein Journal of Organic Chemistry, 2012 , vol. 8, p. 1105 - 1111

74-93-1 52-90-4 ~% 19651-44-6

文献：Pessoa, Joao Costa; Calhorda, Maria J.; Cavaco, Isabel; Costa, Paulo J.; Correia, Isabel; Costa, Dina; Vilas-Boas, Luis F.; Felix, Vitor; Gillard, Robert D.; Henriques, Rui T.; Wiggins, Robert Dalton Transactions, 2004 , # 18 p. 2855 - 2866

61787-00-6 ~% 19651-44-6

文献：Lin; Dubois Journal of Medicinal Chemistry, 1977 , vol. 20, # 3 p. 337 - 341

88347-77-7 ~% 19651-44-6

文献：Effenberger, Franz; Beisswenger, Thomas; Dannenhauer, Fritz Chemische Berichte, 1988 , vol. 121, p. 2209 - 2224

1187-84-4 ~% 19651-44-6

文献：Hwang; Helquist; Shekhani Journal of Organic Chemistry, 1985 , vol. 50, # 8 p. 1264 - 1271

上下游产品

上游产品  6
921-01-7 74-88-4 74-93-1 52-90-4
61787-00-6 1187-84-4
下游产品  6
75-52-5 25731-06-0 88096-62-2 23328-62-3
66255-16-1 55582-20-2

海关

海关编码	2930909090
中文概述	2930909090. 其他有机硫化合物. 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:30.0%
申报要素	品名, 成分含量, 用途
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%