21259-42-7

• 常用中文名：2-Oxo-2H-1-benzopyran-3-carboxylic acid methyl ester
• 常用英文名：2-Oxo-2H-1-benzopyran-3-carboxylic acid methyl ester
• CAS号：21259-42-7
• 分子式：C₁₁H₈O₄
• 分子量：204.17900
• 发布时间：2016-07-21 06:02:10
• 更新时间：2025-09-26 03:37:35

名称

• 英文名: methyl 2-oxochromene-3-carboxylate
• 英文别名: 2-Oxo-2H-chromene-3-carboxylic acid methyl ester; Methyl 2-oxo-2H-chromene-3-carboxylate; methyl 2-oxochromen-3-carboxylate; F0110-0035; 2-Oxo-2H-1-benzopyran-3-carboxylic acid methyl ester; 2-oxochromene-3-carboxylic acid methyl ester; 2H-1-BENZOPYRAN-3-CARBOXYLIC ACID,2-OXO-,METHYL ESTER; methyl coumarin-3-carboxylate

物化性质

• 密度: 1.337g/cm3
• 沸点: 368.9ºC at 760 mmHg
• 分子式: C₁₁H₈O₄
• 分子量: 204.17900
• 闪点: 192.9ºC
• 精确质量: 204.04200
• PSA: 56.51000
• LogP: 1.57960
• 蒸汽压: 1.23E-05mmHg at 25°C
• 折射率: 1.578

毒性和生态

CHEMICAL IDENTIFICATION RTECS NUMBER : DJ2502400 CHEMICAL NAME : 2H-1-Benzopyran-3-carboxylic acid, 2-oxo-, methyl ester CAS REGISTRY NUMBER : 21259-42-7 BEILSTEIN REFERENCE NO. : 0176130 LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C11-H8-O4 MOLECULAR WEIGHT : 204.19 HEALTH HAZARD DATA ACUTE TOXICITY DATA TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Subcutaneous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 72 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : YKKZAJ Yakugaku Zasshi. Journal of Pharmacy. (Nippon Yakugakkai, 2-12-15 Shibuya, Shibuya-ku, Tokyo 150, Japan) No.1- 1881- Volume(issue)/page/year: 75,1486,1955

安全

• 海关编码: 2932209090

合成路线

上下游产品

上游产品  7
90-02-8 108-59-8 845866-31-1 89-95-2
762-42-5 67-56-1 531-81-7
下游产品  4
1032-97-9 1846-76-0 531-81-7 3757-06-0

海关

海关编码	2932209090
中文概述	2932209090. 其他内酯. 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	2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%