4H-1-Benzopyran-2-carboxylicacid, 4-oxo-, ethyl ester
- 中文别名：4-氧代-4H-1-苯并吡喃-2-甲酸乙酯
- 中文释义：4-氧代-4H-色烯-2-羧酸乙酯;4-氧代-4H-1-苯并吡喃-2-甲酸乙酯
- 英文别名：ethyl 4-oxochromene-2-carboxylate;
ethyl 4-oxochromen-2-carboxylate;
4H-1-BENZOPYRAN-2-CARBOXYLIC ACID,4-OXO-,ETHYL ESTER;
ethyl 4-oxo-4H-chromene-2-carboxylate;
4-Oxo-4H-chromen-2-carbonsaeure-aethylester;
Chromone-2-carboxylic acid ethyl ester;
Ethyl 4-oxo-4H-1-benzopyran-2-carboxylate;
ethyl chromone-2-carboxylate;
4-oxo-4H-chromene-2-carboxylic acid ethyl ester;
2-ethyloxycarbonyl-chromone
- CAS No.：14736-31-3
- 分子式：C12H10O4
- 分子量：218.2054
- 精确分子量：218.05800
- PSA：56.51000
- InChI：The Key: CJVFJZNWXDFXHF-UHFFFAOYSA-N
- 分子结构式：
物化性质
- 密度：
- 1.289g/cm3
- 熔点：
- 73-75℃
- 沸点：
- 325ºC at 760 mmHg
- 闪点：
- 143.2ºC
- 折射率：
- 1.567
- 蒸汽压：
- 0.000237mmHg at 25°C
安全信息
- 密度：
- 1.289g/cm3
- 熔点：
- 73-75℃
- 沸点：
- 325ºC at 760 mmHg
- 闪点：
- 143.2ºC
- 折射率：
- 1.567
- 蒸汽压：
- 0.000237mmHg at 25°C
毒理性
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- DJ2501200
- CHEMICAL NAME :
- 4H-1-Benzopyran-2-carboxylic acid, 4-oxo-, ethyl ester
- CAS REGISTRY NUMBER :
- 14736-31-3
- BEILSTEIN REFERENCE NO. :
- 0178173
- LAST UPDATED :
- 199612
- DATA ITEMS CITED :
- 3
- MOLECULAR FORMULA :
- C12-H10-O4
- MOLECULAR WEIGHT :
- 218.22
- WISWESSER LINE NOTATION :
- T66 BO EVJ CVO2
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
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 1250 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- PHTXA6 Pharmacology and Toxicology. English translation of FATOAO. (New York, NY) V.20-22, 1957-59. Discontinued. Volume(issue)/page/year: 21,555,1958
- TYPE OF TEST :
- LD - Lethal dose
- ROUTE OF EXPOSURE :
- Subcutaneous
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- >3 gm/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: 71,686,1951
海关数据
中国海关编码：2918300090
- 概述：
- 2918300090 其他含醛基或酮基不含其他含氧基羧酸（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:9.0% 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
- 摘要/Summary：
- 2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%
