CAS 107-75-5 3,7-Dimethyl-7-hydroxyoctanal
Synonyms: 1-Octanal, 3,7-dimethyl-7-hydroxy-;3,7-dimethyl-7-hydroxy-1-octana;7-Hydroxy-3,7-dimethyloctan-1-al;7-hydroxy-3,7-dimethyl-octana;LAURINE;HYDROXYCITRONELLAL(AS);OCTANAL, 7-HYDROXY-3,7-DIMETHYL;FEMA 2583
CAS: 107-75-5
MF: C10H20O2
MW: 172.26
EINECS: 203-518-7
Product Categories: Chemical Synthesis;Organic Building Blocks;Aldehydes;Building Blocks;C10-C12;Carbonyl Compounds;Alphabetical Listings;Flavors and Fragrances;G-H;Aroma Chemicals
3,7-Dimethyl-7-hydroxyoctanal Chemical Properties:
Melting point: 22-23 °C
Boiling point: 257 °C(lit.)
Density: 0.923 g/mL at 25 °C(lit.)
FEMA: 2583 | HYDROXYCITRONELLAL
refractive index: n20/D 1.448(lit.)
Fp: >230 °F
Storage temp.: room temp
pka: 15.31±0.29(Predicted)
Form: Liquid
Specific Gravity: 0.93
Color: Clear colorless
HS Code: 29124990
Description: Hydroxycitronellal has an intense, sweet, floral, lily-type odor. It may be prepared by hydration of natural citronellal obtained from Java citronella or from Eucalyptus citriodora; P-pinene is converted to myrcene, which on hydration may yield either linalool or a mixture of geranoil and nerol; the latter mixture can be hydrogenated to citronellol and subsequently converted to citronellal and hydroxycitronellal; also by hydrogenation of 3,7-dimethyl- 7-hydroxy-2-octen-2-al over palladium carbon in ethyl acetate solution.
Chemical Properties: Hydroxycitronellal has a sweet, floral, lily-type odor
Chemical Properties: clear colourless liquid
Chemical Properties: This is a colorless, slightly viscous liquid with a floral odor reminiscent of linden blossom and lily of the valley. Commercially available “hydroxycitronellal” is either optically active or racemic, depending on the starting material used. Hydroxydihydrocitronellal prepared from (+)-citronellal, for example, has a specific relation α20 D +9 to +10°.
Hydroxydihydrocitronellal is relatively unstable toward acid and alkali and is, therefore, sometimes converted into more alkali-resistant acetals, particularly its dimethyl acetal.
Because of its fine, floral odor, hydroxydihydrocitronellal is used in large quantities in many perfume compositions for creating linden blossom and lily of the valley notes. It is also used in other blossom fragrances such as honeysuckle, lily, and cyclamen.
Uses: Hydroxycitronellal is a fragrance for use in various perfumes, antiseptics, insecticides and household products; some perfumery uses (sweet pea Pois De Senteur; gardenia; cherry; melon; mint).
Definition: The tertiary alcohol arising from addition of water across the C2C double bond of citronellal.
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