3265-58-5

• 常用中文名：2,6-dimethyl-4-oxopyran-3-carboxylic acid
• 常用英文名：2,6-dimethyl-4-oxopyran-3-carboxylic acid
• CAS号：3265-58-5
• 分子式：C₈H₈O₄
• 分子量：168.14700
• 发布时间：2017-05-29 03:32:10
• 更新时间：2024-01-08 19:32:18

名称

• 英文名: 2,6-dimethyl-4-oxopyran-3-carboxylic acid
• 英文别名: 4-Keto-2,6-dimethyl-4H-pyran-3-carbonsaeure; 2,6-Dimethyl-4-oxo-4H-pyran-3-carbonsaeure; 2,6-Dimethyl-4-pyrone-3-carboxylic acid; 1,4-dihydro-2,6-dimethyl-3-oxopyrancarboxylic acid; 4H-Pyran-3-carboxylic acid,2,6-dimethyl-4-oxo; 2,6-dimethyl-4-oxo-4H-pyran-3-carboxylic acid

物化性质

• 密度: 1.326g/cm3
• 沸点: 341.1ºC at 760 mmHg
• 分子式: C₈H₈O₄
• 分子量: 168.14700
• 闪点: 143.7ºC
• 精确质量: 168.04200
• PSA: 67.51000
• LogP: 0.95480
• 折射率: 1.535

毒性和生态

CHEMICAL IDENTIFICATION RTECS NUMBER : UP7035000 CHEMICAL NAME : 4H-Pyran-3-carboxylic acid, 2,6-dimethyl-4-oxo- CAS REGISTRY NUMBER : 3265-58-5 BEILSTEIN REFERENCE NO. : 0133033 LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C8-H8-O4 MOLECULAR WEIGHT : 168.16 WISWESSER LINE NOTATION : T6O DVJ B1 CVQ F1 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 : 2330 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : SKEZAP Shokuhin Eiseigaku Zasshi. Food Hygiene Journal. (Nippon Shokuhin Eisei Gakkai c/o Shokuhin Eisei Senta, 2-6-1 Jingumae, Shibuya-ku, Tokyo 150, Japan) V.1- 1960- Volume(issue)/page/year: 12,520,1971

安全

• 海关编码: 2932999099

合成路线

771-03-9 ~50% 3265-58-5

文献：Venkatramani, Lalitha; Siripitayananon, Jintana; Helm, Dick van der Journal of Heterocyclic Chemistry, 1993 , vol. 30, # 3 p. 723 - 738

520-45-6 ~% 3265-58-5

文献：Traverso Annali di Chimica (Rome, Italy), 1955 , vol. 45, p. 695,704

75-36-5 ~% 3265-58-5

文献：Krajcinovic Chemische Berichte, 1926 , vol. 59, p. 2117,2118

海关

海关编码	2932999099
中文概述	2932999099. 其他仅含氧杂原子的杂环化合物. 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:20.0%
申报要素	品名, 成分含量, 用途
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%