430676
2,2,5,7,8-Pentamethyl-6-chromanol
97%
Synonym(s):
α-C-1-Chromanol, 2,2,5,7,8-Pentamethyl-3,4-dihydrochromen-6-ol, 2,2,5,7,8-Pentamethyl-6-hydroxychroman, 3,4-Dihydro-2,2,5,7,8-pentamethyl-2H-1-benzopyran-6-ol, 6-Hydroxy-2,2,5,7,8-pentamethylchroman
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All Photos(3)
About This Item
Empirical Formula (Hill Notation):
C14H20O2
CAS Number:
Molecular Weight:
220.31
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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General description
2,2,5,7,8-Pentamethyl-6-chromanol has been reported as an vitamin E model compound. It undergoes oxidation in presence of various alcohols, ranging from methanol to cholesterol, affords 5-alkoxymethyl-2,2,7,8-tetramethyl-6-chromanols. Antioxidant moiety of vitamin E, 2,2,5,7,8-pentamethyl-6-chromanol (PMCol), is reported to have antiandrogen activity in prostate carcinoma cells.
Application
2,2,5,7,8-Pentamethyl-6-chromanol is the suitable reagent used for the quantitative analysis of α-tocopherol by plasma-based gas chromatography/tandem mass spectrometry (GC/MS/MS) using a tabletop quadrupole ion trap mass spectrometer. It may be employed as α-tocopherol model compound and on oxidation by t-butyl hydroperoxide in chloroform, in the presence of alcohol, affords 5-alkoxymethyl-2,2,7,8-tetramethyl-6-chromanol. It may be used as internal standard for the determination of α- and γ-tocopherol in the rabbit serum and liver by HPLC.
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Todd A Thompson et al.
Molecular cancer therapeutics, 2(8), 797-803 (2003-08-27)
Antioxidants, such as vitamin E, are being investigated for efficacy in prostate cancer prevention. In this study, we show that the antioxidant moiety of vitamin E, 2,2,5,7,8-pentamethyl-6-chromanol (PMCol), has antiandrogen activity in prostate carcinoma cells. In the presence of PMCol
New oxidation products of 2, 2, 5, 7, 8-pentamethyl-6-chromanol.
Suarna C, et al.
Lipids, 23(12), 1129-1131 (1988)
Jolanta Gruszka et al.
Free radical biology & medicine, 45(6), 920-928 (2008-07-19)
Singlet oxygen quenching rate constants for tocopherol and tocotrienol homologues have been determined in organic solvents of different polarities, as well as for other biological prenyllipids such as plastoquinol, ubiquinol, and alpha-tocopherolquinol. The obtained results showed that the quenching activity
Liang Hong et al.
The Journal of organic chemistry, 74(17), 6881-6884 (2009-08-12)
An enantioselective Friedel-Crafts alkylation/cyclization cascade reaction of 1-naphthols and alpha,beta-unsaturated aldehydes promoted by diphenylprolinol ether has been developed. The method affords one-pot access to chiral and synthetically useful chromanes and dihydrobenzopyranes in high yields and enantioselectivities from readily available compounds.
Julien Chapelat et al.
Organic letters, 10(22), 5123-5126 (2008-10-22)
A diastereoselective synthesis of alpha-tocopherol 1 (93% de) was achieved via two key steps, (i) a highly diastereoselective Shi epoxidation of a trisubstituted alkene and (ii) an acid supported, "anti-Baldwin" epoxide ring opening under inversion of configuration leading to the
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