4H-1-Benzopyran-2-carboxylicacid, 4-oxo-, methyl ester
- 中文别名：4-氧代-4H-苯并吡喃-2-羧酸甲酯
- 中文释义：methyl 4-oxochromene-2-carboxylate
- 英文别名：methyl 4-oxochromene-2-carboxylate;
Chromon-2-carbonsaeuremethylester;
Chromone-2-carboxylic acid methyl ester;
4H-1-BENZOPYRAN-2-CARBOXYLIC ACID,4-OXO-,METHYL ESTER;
methyl 4-oxo-4H-chromene-2-carboxylate;
methyl 2-chromonecarboxylate;
Methyl chromone-2-carboxylate;
4-oxo-4H-chromene-2-carboxylic acid methyl ester;
4-Oxo-4H-chromen-2-carbonsaeure-methylester;
4-Oxo-4H-1-benzopyran-2-carboxylic acid methyl ester
- CAS No.：18398-73-7
- 分子式：C11H8O4
- 分子量：204.18
- 精确分子量：204.04200
- PSA：56.51000
- 分子结构式：
物化性质
- 密度：
- 1.337g/cm3
- 沸点：
- 311.3ºC at 760mmHg
- 闪点：
- 137.2ºC
- 折射率：
- 1.578
- 蒸汽压：
- 0.000569mmHg at 25°C
安全信息
- 密度：
- 1.337g/cm3
- 沸点：
- 311.3ºC at 760mmHg
- 闪点：
- 137.2ºC
- 折射率：
- 1.578
- 蒸汽压：
- 0.000569mmHg at 25°C
毒理性
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- DJ2502450
- CHEMICAL NAME :
- 4H-1-Benzopyran-2-carboxylic acid, 4-oxo-, methyl ester
- CAS REGISTRY NUMBER :
- 18398-73-7
- BEILSTEIN REFERENCE NO. :
- 0011697
- LAST UPDATED :
- 199612
- DATA ITEMS CITED :
- 1
- MOLECULAR FORMULA :
- C11-H8-O4
- MOLECULAR WEIGHT :
- 204.19
- WISWESSER LINE NOTATION :
- T66 BO EVJ CVO1
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 1700 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
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%
