7083-09-2

Basic information

• Product Name: 5-(6-HYDROXY-2,5,7,8-TETRAMETHYL-CHROMAN-2-YL)-2-METHYL-PENTANOIC ACID
• Synonyms: 5-(6-HYDROXY-2,5,7,8-TETRAMETHYL-CHROMAN-2-YL)-2-METHYL-PENTANOIC ACID;(±)-α-CMBHC;QWPNLVBAEZJBMI-UHFFFAOYSA-N;(-.alpha.-CMBHC
• CAS NO: 7083-09-2
• Molecular Formula: C19H28O4
• Molecular Weight: 320.42322
• Mol File: 7083-09-2.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 499°C at 760 mmHg
• Flash Point: 174.6°C
• Appearance: /
• Density: 1.098g/cm³
• Vapor Pressure: 8.94E-11mmHg at 25°C
• Refractive Index: 1.532
• CAS DataBase Reference: 5-(6-HYDROXY-2,5,7,8-TETRAMETHYL-CHROMAN-2-YL)-2-METHYL-PENTANOIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: 5-(6-HYDROXY-2,5,7,8-TETRAMETHYL-CHROMAN-2-YL)-2-METHYL-PENTANOIC ACID(7083-09-2)
• EPA Substance Registry System: 5-(6-HYDROXY-2,5,7,8-TETRAMETHYL-CHROMAN-2-YL)-2-METHYL-PENTANOIC ACID(7083-09-2)

Safety Data

• Hazardous Substances Data: 7083-09-2(Hazardous Substances Data)

Usage

Description

(±)-α-CMBHC is a metabolite of (±)-α-tocopherol .

InChI:InChI=1/C19H28O4/c1-11(18(21)22)7-6-9-19(5)10-8-15-14(4)16(20)12(2)13(3)17(15)23-19/h11,20H,6-10H2,1-5H3,(H,21,22)

Upstream product

• 353748-05-7 6-hydroxy-6-vinyl-2-methyl-heptanoic acid methyl ester 
• 2570-90-3 6-oxo-2-methyl-heptanoic acid methyl ester 
• 2570-68-5 6-oxo-2-methyl-heptanoic acid 
• 7047-69-0 (+/-)-5-(6-hydroxy-2,5,7,8-tetramethyl-chroman-2-yl)-2-methyl-pentanoic acid methyl ester 

Relevant articles and documents

New synthesis of (±)-α-CMBHC and its confirmation as a metabolite of α-tocopherol (vitamin E)

There is currently interest in the metabolism of the various compounds which make up the vitamin E family, especially with regards to the possible use of vitamin E metabolites as markers of oxidative stress and adequate vitamin E supply. A number of vitamin E metabolites have been described to date and we have recently developed a method to extract and quantitate a range of vitamin E metabolites in human urine. During the development of this method a new metabolite of α-tocopherol was identified, which we tentatively characterised as 5-(6-hydroxy-2,5,7,8-tetramethyl-chroman-2-yl)-2-methyl-pentanoic acid (α-CMBHC). Here we describe the synthesis of α-CMBHC as a standard and confirm that it is a metabolite of α-tocopherol.