18735-96-1

• 常用中文名：2,7-Dimethyl-2,3-dihydro-4H,5H-pyrano[4,3-b]pyran-4,5-dione
• 常用英文名：2,7-Dimethyl-2,3-dihydro-4H,5H-pyrano[4,3-b]pyran-4,5-dione
• CAS号：18735-96-1
• 分子式：C₁₀H₁₀O₄
• 分子量：194.18400
• 发布时间：2016-11-15 17:50:10
• 更新时间：2023-01-27 11:06:23

名称

• 英文名: 2,7-dimethyl-2,3-dihydropyrano[3,2-c]pyran-4,5-dione
• 英文别名: 2,3-Dihydro-2,7-dimethyl-4H,5H-pyrano-<4,3-b>pyran-4,5-dion

物化性质

• 密度: 1.29g/cm3
• 沸点: 331.2ºC at 760 mmHg
• 分子式: C₁₀H₁₀O₄
• 分子量: 194.18400
• 闪点: 148.2ºC
• 精确质量: 194.05800
• PSA: 56.51000
• LogP: 1.30190
• 蒸汽压: 0.000158mmHg at 25°C
• 折射率: 1.539

毒性和生态

CHEMICAL IDENTIFICATION RTECS NUMBER : UQ1356500 CHEMICAL NAME : 4H,5H-Pyrano(4,3-b)pyran-4,5-dione, 2,3-dihydro-2,7-dimethyl- CAS REGISTRY NUMBER : 18735-96-1 BEILSTEIN REFERENCE NO. : 1311628 LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C10-H10-O4 MOLECULAR WEIGHT : 194.20 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 : 1679 mg/kg TOXIC EFFECTS : Brain and Coverings - recordings from specific areas of CNS Behavioral - convulsions or effect on seizure threshold Behavioral - tetany REFERENCE : FRPSAX Farmaco, Edizione Scientifica. (Casella Postale 227, 27100 Pavia, Italy) V.8-43 1953-88 For publisher information, see FRMCE8 Volume(issue)/page/year: 29,861,1974

合成路线

675-10-5 107-93-7 ~55% 18735-96-1

文献：Zehnder, Luke R.; Dahl, Jason W.; Hsung, Richard P. Tetrahedron Letters, 2000 , vol. 41, # 12 p. 1901 - 1905

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