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百里酚酞

百里酚酞
IUPAC名
3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1(3H)-one
3,3-雙(4-羥基-5-異丙基-2-甲基苯基)-2-(3H)-苯駢呋喃酮
别名 百里香酚酞
麝香草酚酞
识别
CAS号 125-20-2  checkY
PubChem 31316
ChemSpider 29054
SMILES
 
  • O=C1OC(c2ccccc12)(c3cc(c(O)cc3C)C(C)C)c4cc(c(O)cc4C)C(C)C
InChI
 
  • 1/C28H30O4/c1-15(2)20-13-23(17(5)11-25(20)29)28(22-10-8-7-9-19(22)27(31)32-28)24-14-21(16(3)4)26(30)12-18(24)6/h7-16,29-30H,1-6H3
InChIKey LDKDGDIWEUUXSH-UHFFFAOYAV
EINECS 204-729-7
性质
化学式 C28H30O4
摩尔质量 430.54 g·mol−1
外观 白色粉末
熔点 248—252 °C(521—525 K)(分解)
危险性
GHS危险性符号
《全球化学品统一分类和标签制度》(简称“GHS”)中对人体有害物质的标签图案
GHS提示词 Warning
H-术语 H341, H350, H361
P-术语 P201, P202, P210, P233, P240, P241, P242, P243, P280, P281, P303+361+353, P308+313, P370+378, P403+235
NFPA 704
0
1
0
 
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

百里酚酞(英語:Thymolphthalein)是一种酸碱指示剂。其变色范围为9.3-10.5,由无色变为蓝色。其二价阴离子的摩尔消光系数为38,000 M−1 cm−1(595 nm)。[1]

百里酚酞酸碱指示剂
低於pH 9.3 时 高於pH 10.5 时
9.3 10.5

百里酚酞可用作泻药[2]以及“消失的墨水”。[3]

制备

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百里酚酞可由百里酚邻苯二甲酸酐傅-克反应合成:

參見

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参考资料

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  1. ^ Hahn HH; Cheuk SF; Elfenbein S; Wood WB. Studies on the Pathogenesis of Fever: Xix. Localization of Pyrogen in Granulocytes (PDF). J. Exp. Med. April 1970, 131 (4): 701–9. PMC 2138774可免费查阅. PMID 5430784. doi:10.1084/jem.131.4.701. 
  2. ^ Hubacher MH, Doernberg S, Horner A. Laxatives: chemical structure and potency of phthaleins and hydroxyanthraquinones. J Am Pharm Assoc Am Pharm Assoc. 1953;42(1):23-30. PMID 13034620.
  3. ^ Katz, David A. Disappearing Ink (PDF). www.chymist.com. 1982 [August 14, 2017]. (原始内容存档 (PDF)于2018-04-03). 
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百里酚酞
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