数据之源，洞见之始

(-)-3-exo-Hydroxycamphor is not a recognized natural metabolite or biologically active compound with established physiological roles. It appears to be a misidentified or synthetic derivative of camphor. The well-documented biological context involves microbial degradation pathways (e.g., in Pseudomonas putida), where camphor is primarily metabolized to 5-hydroxycamphor (not 3-exo-hydroxycamphor) via a specific monooxygenase enzyme. The 3-exo position in camphor is sterically hindered and not a typical site for enzymatic hydroxylation. Thus, (-)-3-exo-hydroxycamphor lacks evidence of natural occurrence, metabolic significance, or defined biological function in living systems. Its mention likely stems from confusion with authentic degradation intermediates or synthetic chemistry contexts.

(Abstract word count: 98)

A 6-hydroxycamphor that is (+)-camphor bearing a 6-endo-hydroxy substituent." []

(+)-6-exo-hydroxycamphor is a 6-hydroxycamphor that is (+)-camphor bearing a 6-exo-hydroxy substituent.

(+)-exo-5-hydroxycamphor

(+)-Iridodial

An optically active form of 1-hydroxylimonen-2-one having (1R,4S)-configuration." []

(1S,4R)-1-Hydroxy-2-oxolimonene

An optically active form of 6-isopropenyl-3-methyloxepan-2-one having (3S,6S)-configuration." []

An optically active form of 6-isopropenyl-3-methyloxepan-2-one having (3S,6R)-configuration." []

(3s)-3-hydroxycyclocitral, also known as 3beta-hydroxy-beta-cyclocitral, is a member of the class of compounds known as secondary alcohols. Secondary alcohols are compounds containing a secondary alcohol functional group, with the general structure HOC(R)(R') (R,R'=alkyl, aryl) (3s)-3-hydroxycyclocitral is slightly soluble (in water) and an extremely weak acidic compound (based on its pKa). (3s)-3-hydroxycyclocitral can be found in a number of food items such as garden tomato (variety), malabar plum, lime, and pot marjoram, which makes (3s)-3-hydroxycyclocitral a potential biomarker for the consumption of these food products.

(4R,7R)-4-isopropenyl-7-methyloxepan-2-one

(4S,7R)-4-isopropenyl-7-methyloxepan-2-one

A monoterpenoid that is geranial bearing a hydroxy substituent at position 8." []

A monoterpenoid that is geraniol bearing an oxo substituent at position 8." []

A monoterpenoid that is linalool bearing an oxo substituent at position 8." []

An 8-oxocitronellyl enol in which the chiral centre has R configuration." []

An 8-oxocitronellyl enol in which the chiral centre has S configuration." []

(z)-3,5-hexadienyl butyrate is a member of the class of compounds known as fatty acid esters. Fatty acid esters are carboxylic ester derivatives of a fatty acid (z)-3,5-hexadienyl butyrate is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). (z)-3,5-hexadienyl butyrate can be found in passion fruit, which makes (z)-3,5-hexadienyl butyrate a potential biomarker for the consumption of this food product.

A limonene monoterpenoid that consists of cyclohexanone bearing hydroxy and methyl substituents at position 2 as well as an isopropenyl substituent at position 5." []