5527-76-4

• 常用中文名：ETHYL 5-METHOXY-4-OXO-1,4-DIHYDRONAPHTHALENE-2-CARBOXYLATE
• 常用英文名：ETHYL 5-METHOXY-4-OXO-1,4-DIHYDRONAPHTHALENE-2-CARBOXYLATE
• CAS号：5527-76-4
• 分子式：C₁₃H₁₂O₅
• 分子量：248.23100
• 发布时间：2016-10-20 09:56:50
• 更新时间：2025-09-17 23:13:02

名称

• 英文名: ethyl 5-methoxy-4-oxochromene-2-carboxylate
• 英文别名: Ethyl 5-methoxy-4-oxo-4H-1-benzopyran-2-carboxylate; 5-methoxy-4-oxo-4H-chromene-2-carboxylic acid ethyl ester; ethyl 5-methoxy-4-oxo-4H-chromene-2-carboxylate; 4H-1-Benzopyran-2-carboxylic acid,5-methoxy-4-oxo-,ethyl ester; ethyl 5-methoxy-4-oxo-4H-chromen-2-carboxylate; 2-ethyloxy-5-methoxychromone

物化性质

• 密度: 1.284g/cm3
• 沸点: 382.9ºC at 760 mmHg
• 分子式: C₁₃H₁₂O₅
• 分子量: 248.23100
• 闪点: 213.2ºC
• 精确质量: 248.06800
• PSA: 65.74000
• LogP: 1.97830
• 折射率: 1.555

毒性和生态

CHEMICAL IDENTIFICATION RTECS NUMBER : DJ2392000 CHEMICAL NAME : 4H-1-Benzopyran-2-carboxylic acid, 5-methoxy-4-oxo-, ethyl ester CAS REGISTRY NUMBER : 5527-76-4 BEILSTEIN REFERENCE NO. : 1319702 LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C13-H12-O5 MOLECULAR WEIGHT : 248.25 HEALTH HAZARD DATA ACUTE TOXICITY DATA TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : >100 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : JMCMAR Journal of Medicinal Chemistry. (American Chemical Soc., Distribution Office Dept. 223, POB POB 57136, West End Stn., Washington, DC 20037) V.6- 1963- Volume(issue)/page/year: 15,865,1972

安全

• 海关编码: 2918990090

合成路线

703-23-1 95-92-1 ~79% 5527-76-4

文献：MERCK PATENT GMBH Patent: WO2006/94601 A1, 2006 ; Location in patent: Page/Page column 62 ;

699-83-2 ~% 5527-76-4

文献：Hadjeri, Mohamed; Barbier, Magali; Ronot, Xavier; Mariotte, Anne-Marie; Boumendjel, Ahcene; Boutonnat, Jean Journal of Medicinal Chemistry, 2003 , vol. 46, # 11 p. 2125 - 2131

海关

海关编码	2918990090
中文概述	2918990090. 其他含其他附加含氧基羧酸（包括酸酐、酰卤化物、过氧化物和过氧酸及该税号的衍生物）. 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	2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%