3,7-Dimethyl-7-hydroxyoctanal
- CAS No.
- 107-75-5
- Chemical Name:
- 3,7-Dimethyl-7-hydroxyoctanal
- Synonyms
- Lilyl aldehyde;Cyclosia;7-HYDROXYCITRONELLAL;LAURINE;OCTANAL, 7-HYDROXY-3,7-DIMETHYL;FEMA 2583;CITRONELLAL HYDRATE;hydroxycitoronellal;HYDROXYCITRONELLAL(AS);7-hydroxy-3,7-dimethyl-octana
- CBNumber:
- CB5726475
- Molecular Formula:
- C10H20O2
- Molecular Weight:
- 172.26
- MDL Number:
- MFCD00014681
- MOL File:
- 107-75-5.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Hydroxycitronellal ≥95%, FCC, FG | W258318 | 1 each | $58 |
| 7-Hydroxycitronellal Odorant used in allergy studies | 82934 | 25g | $112 |
| Hydroxycitronellal ≥95%, FCC, FG | W258318 | 1 unit | $56.3 |
| Hydroxycitronellal ≥95%, FCC, FG | W258318 | 1 unit | $56.3 |
| Hydroxycitronellal solution certified reference material, ampule of 1?mL | CRM40908 | 1mL | $88.3 |
| More product size | |||
| Melting point | 22-23 °C |
|---|---|
| Boiling point | 257 °C(lit.) |
| Density | 0.923 g/mL at 25 °C(lit.) |
| vapor pressure | 0.547Pa at 20℃ |
| refractive index |
n |
| FEMA | 2583 | HYDROXYCITRONELLAL |
| FLAVIS Number | 05.012 | 3,7-Dimethyl-7-hydroxyoctanal |
| Flash point | >230 °F |
| storage temp. | Inert atmosphere,Store in freezer, under -20°C |
| solubility | Benzene (Slightly), Chloroform (Slightly), Methanol (Slightly) |
| pka | 15.31±0.29(Predicted) |
| form | Liquid |
| Specific Gravity | 0.93 |
| color | Clear colorless |
| Odor | at 100.00 %. floral lily sweet green waxy tropical melon |
| Odor Type | floral |
| biological source | synthetic |
| Water Solubility | 35g/L at 20℃ |
| JECFA Number | 611 |
| Henry's Law Constant | 9.4×102 mol/(m3Pa) at 25℃, Dupeux et al. (2022) |
| Stability | Air Sensitive |
| Major Application | flavors and fragrances |
| Cosmetics Ingredients Functions | PERFUMING |
| InChI | 1S/C10H20O2/c1-9(6-8-11)5-4-7-10(2,3)12/h8-9,12H,4-7H2,1-3H3 |
| InChIKey | WPFVBOQKRVRMJB-UHFFFAOYSA-N |
| SMILES | [H]C(=O)CC(C)CCCC(C)(C)O |
| LogP | 1.68 at 25℃ |
| CAS DataBase Reference | 107-75-5(CAS DataBase Reference) |
| Substances Added to Food (formerly EAFUS) | HYDROXYCITRONELLAL |
| FDA UNII | 8SQ0VA4YUR |
| NIST Chemistry Reference | Hydroxycitronellal(107-75-5) |
| EPA Substance Registry System | Octanal, 7-hydroxy-3,7-dimethyl- (107-75-5) |
| UNSPSC Code | 12352200 |
| NACRES | NA.52 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315-H317-H319 |
| Precautionary statements | P280-P302+P352-P305+P351+P338 |
| PPE | Eyeshields, Gloves, type ABEK (EN14387) respirator filter |
| Hazard Codes | Xi |
| Risk Statements | 38-41-43 |
| Safety Statements | 26-39-36/37 |
| RIDADR | UN1230 - class 3 - PG 2 - Methanol, solution |
| WGK Germany | 1 |
| RTECS | RG7850000 |
| TSCA | TSCA listed |
| HS Code | 29124990 |
| Storage Class | 10 - Combustible liquids |
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 Skin Sens. 1 |
| REACH Registrations | Active |
3,7-Dimethyl-7-hydroxyoctanal price More Price(55)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | W258318 | Hydroxycitronellal ≥95%, FCC, FG | 107-75-5 | 1 each | $58 | 2026-04-30 | Buy |
| Sigma-Aldrich | 82934 | 7-Hydroxycitronellal Odorant used in allergy studies | 107-75-5 | 25g | $112 | 2026-04-30 | Buy |
| Sigma-Aldrich | W258318 | Hydroxycitronellal ≥95%, FCC, FG | 107-75-5 | 1 unit | $56.3 | 2025-07-31 | Buy |
| Sigma-Aldrich | W258318 | Hydroxycitronellal ≥95%, FCC, FG | 107-75-5 | 1 unit | $56.3 | 2025-07-31 | Buy |
| Sigma-Aldrich | CRM40908 | Hydroxycitronellal solution certified reference material, ampule of 1?mL | 107-75-5 | 1mL | $88.3 | 2022-05-15 | Buy |
3,7-Dimethyl-7-hydroxyoctanal Chemical Properties,Uses,Production
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
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.
Chemical Properties
clear colourless liquid
Chemical Properties
Hydroxycitronellal has a sweet, floral, lily-type odor
Occurrence
Reported found in pepper
Uses
7-Hydroxycitronellal shows fungicide activity the strains of Candida tropicalis.
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).
Preparation
The most important synthetic routes to hydroxydihydrocitronellal
are listed as follows.
1) Synthesis from citronellal: One of the oldest routes to hydroxydihydrocitronellal
is the hydration of the citronellal bisulfite adduct (obtained at low
temperature) with sulfuric acid, followed by decomposition with sodium
carbonate. A more recent development is hydration of citronellal enamines
or imines, followed by hydrolysis.
2) Synthesis from citronellol. Citronellol is hydrated to 3,7-dimethyloctane-1,7-
diol, for example, by reaction with 60% sulfuric acid. The diol is dehydrogenated
catalytically in the vapor phase at low pressure to give highly pure
hydroxydihydrocitronellal in excellent yield.The process is carried out in the
presence of, for example, a copper–zinc catalyst; at atmospheric pressure,
noble metal catalysts can also be used.
3) Synthesis from 7-hydroxygeranyl/-neryl dialkylamine: The starting material
can be obtained by treatment of myrcene with a dialkylamine in the
presence of an alkali dialkylamide, followed by hydration with sulfuric
acid. The 7-hydroxygeranyl/-neryl dialkylamine isomerizes to the corresponding
7-hydroxyaldehyde enamine in the presence of a palladium(II)-
phosphine complex as catalyst. Hydrolysis of the enamine gives 7-hydroxydihydrocitronellal
[151].
Definition
ChEBI: The tertiary alcohol arising from addition of water across the C2C double bond of citronellal.
Taste threshold values
Taste characteristics at 50 ppm: sweet, waxy, green, floral and melon notes.
Flammability and Explosibility
Not classified
Trade name
Laurinal® (Takasago).
Contact allergens
Hydroxycitronellal is a classical fragrance allergen, found in many products. It is contained in “fragrance mix.” It has to be listed by name in the cosmetics of the EU.
Safety Profile
A skin irritant. Combustible liquid. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES.
Synthesis
By hydration of natural citronellal obtained from Java citronella or from Eucalyptus citriodora; β-pinene is converted to myrcene, which on hydration may yield either linalool or 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.
3,7-Dimethyl-7-hydroxyoctanal Preparation Products And Raw materials
Raw materials
1of3
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Yanxi Chemical Co., Ltd. | +8618531123677 | faithe@yan-xi.com | China | 5853 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531151365 | mina@chuanghaibio.com | China | 18126 | 58 |
| Hebei Jingbo New Material Technology Co., Ltd | +8619931165850 | hbjbtech@163.com | China | 1000 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Hebei Longbang Technology Co., LTD | +86-18633929156 | admin@hblongbang.com | China | 972 | 58 |
| HebeiShuoshengImportandExportco.,Ltd | +86-18532138899 | L18532138899@163.com | China | 939 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21585 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29812 | 58 |
| SHANDONG ZHI SHANG CHEMICAL CO.LTD | 0531-68652808 18953170293 | sales@sdzschem.com | China | 2921 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 | sale@chuangyingchem.com | CHINA | 5906 | 58 |
View Lastest Price from 3,7-Dimethyl-7-hydroxyoctanal manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-07-29 | 3,7-Dimethyl-7-hydroxyoctanal
107-75-5
|
$6.00 | 1kg | 99% | 2000KG/Month | HebeiShuoshengImportandExportco.,Ltd | |
 |
2025-06-27 | 3,7-Dimethyl-7-hydroxyoctanal
107-75-5
|
1KG | 99% | 500000kg | Hebei Chuanghai Biotechnology Co., Ltd | ||
 |
2025-06-20 | 3,7-Dimethyl-7-hydroxyoctanal
107-75-5
|
$1.00 | 1kg | 99% | 20tons | Hebei Yanxi Chemical Co., Ltd. |
-
- 3,7-Dimethyl-7-hydroxyoctanal
107-75-5
- $6.00
- 99%
- HebeiShuoshengImportandExportco.,Ltd
-
- 3,7-Dimethyl-7-hydroxyoctanal
107-75-5
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- 3,7-Dimethyl-7-hydroxyoctanal
107-75-5
- $1.00
- 99%
- Hebei Yanxi Chemical Co., Ltd.
