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2H-Pyran-2-one | CAS:504-31-4
2H-Pyran-2-one
  • 名称:2H-吡喃-2-酮 | 2H-Pyran-2-one
  • CAS号:504-31-4
  • 别名:Coumalin; alpha-Pyrone
  • 分子式:C5H4O2
  • 分子量:96.08
  • EINESC号:207-990-5

产品描述

物理化学性质

熔点 171-172 ºC***
沸点 207.5 ºC****
闪点 89.2±16.1 ºC, 计算值*
密度 1.2039 g/cm3 (20 ºC)**
折射率 1.56674 (19.45 ºC)*****

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Contact allergy to Tinuvin P.A C de Groot et al.Contact dermatitis, 9(4), 324-325 (1983-07-01) Contact sensitivity to Tinuvin P in mice.Y Ikarashi et al.Contact dermatitis, 30(4), 226-230 (1994-04-01) Contact sensitivity of and cross-sensitivity between 2-(2'-hydroxy-5'-methylphenyl)benzotriazole (Tinuvin P) and 2-(2'-hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole (Tinuvin 326) evaluated by lymph node cell proliferation and ear swelling response in mice.Y Ikarashi et al.Toxicology letters, 71(2), 151-159 (1994-04-01) [Studies for analyzing the restricted ingredients such as 2-(2'-hydroxy-5'-methylphenyl)-benzotriazole].Hiroshi Tokunaga et al.Kokuritsu Iyakuhin Shokuhin Eisei Kenkyujo hokoku = Bulletin of National Institute of Health Sciences, (120)(120), 98-100 (2003-03-18) [Determining the levels of benazol II in environmental objects].F M Fazlieva et al.Gigiena i sanitariia, (3)(3), 82-83 (1991-03-01) [Hygienic chemical studies on plastics (VIII). Migration test of methyl methacrylate and plastic additives from polymethyl methacrylate (author's transl)].T Inoue et al.Eisei Shikenjo hokoku. Bulletin of National Institute of Hygienic Sciences, 99, 144-147 (1981-01-01) Allergic contact dermatitis from an ostomy bag.E van Hecke et al.Contact dermatitis, 18(2), 121-122 (1988-02-01) Contact allergy to the UV-absorber Tinuvin P in plastics.B Niklasson et al.Contact dermatitis, 21(5), 330-334 (1989-11-01) Tinuvin P in a spandex tape as a cause of clothing dermatitis.K Arisu et al.Contact dermatitis, 26(5), 311-316 (1992-05-01) Contact allergy to the UV absorber Tinuvin P in a dental restorative material.B Björkner et al.American journal of contact dermatitis : official journal of the American Contact Dermatitis Society, 8(1), 6-7 (1997-03-01) A molecular logic gate.K L Kompa et al.Proceedings of the National Academy of Sciences of the United States of America, 98(2), 410-414 (2001-02-24) Structural studies of two Tinuvin P analogs: 2-(2,4-dimethylphenyl)-2H-benzotriazole and 2-phenyl-2H-benzotriazole.Rosa María Claramunt et al.Molecules (Basel, Switzerland), 12(9), 2201-2214 (2007-10-27) Determination of UV stabilizers in PET bottles by high performance-size exclusion chromatography.M Monteiro et al.Food additives and contaminants, 13(5), 575-586 (1996-07-01)
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