, chromane (krō'man, -mān),
Fundamental unit of the tocopherols (vitamin E).
See also: chromanol, chromene, chromenol.
References in periodicals archive ?
When Jason Chroman relocated from San Francisco to the suburbs, he and his family moved into a bigger, newer house.
25] regular isoprenoids are absent or are present in traces only, 8-methyl-2-methyl-2-(4,8,12-tri-methyltridecyl) chroman is absent, extended homohopanes above [C.
Flavonoids, as polyphenolic compounds are based on a C15 (C6-C3-C6) framework that possess a chroman ring with a second aromatic ring at the C-2, C-3, or C-4 position that renders them hydrogen and electron donors [7].
Both tocopherols and tocotrienols (T3) belong to the family vitamin E, with each of them comprising four homologs ([alpha], [beta], [gamma], and [delta]); they differ structurally in that tocopherols contain a saturated phytyl chain whereas tocotrienols possess an unsaturated isoprenoid side chain attached to 2-position on the chroman ring (Sen et al.
L'Occitane was represented by David Knee, senior managing director, and Blake Chroman, senior vice president, with JLL.
For example, the chroman ring is a constituent of various bioactive compounds that are sodium channel blocker [1], 5H[T.
In actuality, alpha-tocopherol is one member of a class of phytochemicals that are distinguished by varying methylation of a chroman head group.
5 and 6)' and interact with the rubber compound via chroman ring and methylene bridge formation (refs.
Two other victims from the Chabad house who have also been positively identified are Bentzion Chroman, a dual U.
Natural vitamin E does not necessarily contain all four tocopherols (alpha, beta, delta, and gamma tocopherols) and these compounds are not stereoisomers of one another but actually differ in the number and position of methyl groups on the chroman ring.
Alan Chroman, a Beverly Hills psychiatrist who works with Century City Hospital, advises his nervous fliers to think back to pleasant flight experiences, like those during which nothing happened.