ORRISOL - CAS 76649-25-7
Molecular Formula:
Molecular Weight:
Olfactive Family:
Odor description:
A floral odor with notes of Orris, Genet, and hints of cucumber.
Taste description:
Honeydew melon, cucumber with ripe strawberry notes.
95.0% (sum of isomers)
colorless liquid
(* Alt. CAS #) CAS: 56805-23-3; e,z-3,6-Nonadienol, 3,6-Nonadien-1-ol, 3,6-NONADIEN-1-OL BRI, 3,6-Nonadienol, e,z-3,6-Nonadienol, FEMA CAS: 56805-23-3, ORRISOL, trans,cis-3,6-Nonadienol
Very slightly soluble in water.
Store tightly sealed under inert gas in a cool, well-ventilated area.
Shelf Life:
36 months from manufacture date
Boiling Point:
231.61 C (EPI 4.0)
0.863 : 0.871 at 25 deg C
Refractive index:
1.462 : 1.469 at 20 deg C
1.Trail pheromone of ponerine ant Gnamptogenys striatula: 4-methylgeranyl esters from Dufour's gland.
Blatrix R1, Schulz C, Jaisson P, Francke W, Hefetz A. J Chem Ecol. 2002 Dec;28(12):2557-67.
Dufour's gland is the origin of the trail pheromone of Gnamptogenys striatula. Chemical analysis of the glandular extracts revealed a series of new natural products, especially esters of (2E)-3,4,7-trimethyl-2,6-octadien-1-ol (4-methylgeraniol), and (2E)-3,4,7-trimethyl-2,6-nonadien-1-ol (a bishomogeraniol isomer) with medium-chain fatty acids. Bioassays with synthetic racemates of the esters revealed that the 4-methylgeranyl esters are highly active as trail pheromones, while the bishomogeranyl esters are either marginally active or not active at all. Assays with the individual 4-methylgeranyl esters showed each of them to be inferior to the glandular secretion in eliciting trail following. However, the mixture of racemic 4-methylgeranyl octanoate and the corresponding decanoate and dodecanoate, the main Dufour's volatile constituents, is as active as the natural secretion at similar concentration. We conclude that the trail pheromone constitutes a mixture of at least the 4-methylgeranyl esters identified in the gland.
2.Isolation and identification of terpenoid sex pheromone components from extracts of hemolymph of males of the Caribbean fruit fly.
Teal PE1, Meredith JA, Gomez-Simuta Y. Arch Insect Biochem Physiol. 1999 Dec;42(4):225-32.
Extracts obtained from hemolymph of sexually mature males of the Caribbean fruit fly Anastrepha suspensa contained four biologically important terpenoid components of the sex pheromone. The four components were identified as farnesene, bisabolene, anastrephin, and epianastrepin based on their relative retention indexes from capillary gas chromatography analysis, using both apolar and polar phase columns and their chemical ionization (isobutane) mass spectra. The ratio of the components in extracts of hemolymph was the same as the ratio present in the volatile blend of pheromone released by sexually mature males during the reproductive period. Studies conducted to determine the effect of age on amounts of these components in hemolymph indicated that they increased from undetectable levels on the day of adult emergence to maximum levels on day eight. The increases in amounts of the components present in hemolymph with increasing age were correlated with increases in amounts of volatile pheromone released by males.
3.Identification of the main odor-active compounds in musts from French and Romanian hybrids by three olfactometric methods.
Serot T1, Prost C, Visan L, Burcea M. J Agric Food Chem. 2001 Apr;49(4):1909-14.
Three olfactometric methods (frequency of detection, time--intensity method, and aroma extract dilution analysis) were used to evaluate the main odorants of three musts obtained from French--Romanian hybrids (Valerien, Admira, and Brumariu). The three methods allow detection of the same odor-active compounds. The results obtained from these methods were closely related. Nineteen odor-active compounds were detected, and 13 were identified. The three methods showed the importance of an unidentified compound with a grape and grape juice aroma note in the three musts. Among the other compounds, 3-hexen-1-al, (E,Z)-2,6-nonadien-1-ol, and 1-ccten-3-one seemed to contribute actively to the odor of Valerien must. 3-(Methylthio)propanal and hexanal were contributors to the Admira and Brumariu odor. Phenylacetaldehyde was one of the main odor-active compounds in must from Admira.
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CAS 76649-25-7 ORRISOL

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