ChemicalBook > CAS DataBase List > 3,7-Dimethyl-7-hydroxyoctanal

3,7-Dimethyl-7-hydroxyoctanal

Product Name
3,7-Dimethyl-7-hydroxyoctanal
CAS No.
107-75-5
Chemical Name
3,7-Dimethyl-7-hydroxyoctanal
Synonyms
Lilyl aldehyde;7-HYDROXYCITRONELLAL;LAURINE;CITRONELLAL HYDRATE;HYDROXYCITRONELLAL(AS);3,7-dimethyl-7-hydroxy-1-octana;OCTANAL, 7-HYDROXY-3,7-DIMETHYL;Fixol;Phixia;Hycelea
CBNumber
CB5726475
Molecular Formula
C10H20O2
Formula Weight
172.26
MOL File
107-75-5.mol
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3,7-Dimethyl-7-hydroxyoctanal Property

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 
n20/D 1.448(lit.)
FEMA 
2583 | HYDROXYCITRONELLAL
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
Stability:
Air Sensitive
InChIKey
WPFVBOQKRVRMJB-UHFFFAOYSA-N
LogP
1.68 at 25℃
CAS DataBase Reference
107-75-5(CAS DataBase Reference)
NIST Chemistry Reference
Hydroxycitronellal(107-75-5)
EPA Substance Registry System
Octanal, 7-hydroxy-3,7-dimethyl- (107-75-5)
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Safety

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
HS Code 
29124990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H317May cause an allergic skin reaction

H319Causes serious eye irritation

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
82934
Product name
7-Hydroxycitronellal
Purity
Odorant used in allergy studies
Packaging
25g
Price
$101
Updated
2024/03/01
Sigma-Aldrich
Product number
CRM40908
Product name
Hydroxycitronellal solution
Purity
certified reference material, ampule of 1?mL
Packaging
1mL
Price
$88.3
Updated
2022/05/15
Sigma-Aldrich
Product number
66010
Product name
Hydroxycitronellal
Purity
analytical standard
Packaging
1ml
Price
$63
Updated
2022/05/15
Sigma-Aldrich
Product number
W258318
Product name
Hydroxycitronellal
Purity
≥95%, FCC, FG
Packaging
sample
Price
$54.6
Updated
2024/03/01
Sigma-Aldrich
Product number
W258318
Product name
Hydroxycitronellal
Purity
≥95%, FCC, FG
Packaging
1kg
Price
$143
Updated
2024/03/01
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3,7-Dimethyl-7-hydroxyoctanal Chemical Properties,Usage,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

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).

Uses

7-Hydroxycitronellal shows fungicide activity the strains of Candida tropicalis.

Definition

ChEBI: The tertiary alcohol arising from addition of water across the C2C double bond of citronellal.

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].

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

sulfurous acid Eucalyptus Citriodara Oil Citronella oil Sodium acetate trihydrate Citronellal Sodium bisulfite Sulfurous Acid Sodium bisulfite solution Citral SULFATE STANDARD

Preparation Products

8,8-Dimethoxy-2,6-dimethyloctan-2-ol HYDROXY CITRONELLAL DIETHYL ACETAL
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View Lastest Price from 3,7-Dimethyl-7-hydroxyoctanal manufacturers

Hebei Saisier Technology Co., LTD
Product
3,7-Dimethyl-7-hydroxyoctanal 107-75-5
Price
US $6.00/KG
Min. Order
1KG
Purity
More than 99%
Supply Ability
2000KG/Month
Release date
2024-04-26
HebeiShuoshengImportandExportco.,Ltd
Product
3,7-Dimethyl-7-hydroxyoctanal 107-75-5
Price
US $6.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
2000KG/Month
Release date
2024-08-02
Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Hydroxycitronellal 107-75-5
Price
US $120.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-05-16

107-75-5, 3,7-Dimethyl-7-hydroxyoctanalRelated Search:

Dimethyl disulfide N,N-Dimethylformamide Dimethyl fumarate Poly(dimethylsiloxane) Dimethyl sulfoxide Chrysin Dimethyl sulfate Dimethyl phthalate Dacthal 2,3-Butanedione Citronellal ETHANE Octanal Dimethyl carbonate Dimethyl ether Citronella grass oil N,N-Dimethylacetamide Citronella oil

  • 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
  • HYDROXYCITRONELLAL BJ
  • HYDROXYCITRONELLAL CJ
  • CITRONELLAL HYDRATE
  • Citronellal, hydroxy-
  • Cyclalia
  • Cyclosia
  • Fixol
  • hydroxy-citronella
  • Lilyl aldehyde
  • lilylaldehyde
  • Muguet synthetic
  • muguetsynthetic
  • Muguettine principle
  • muguettineprinciple
  • Musuet synthetic
  • Musuettine principle
  • Phixia
  • Hydroxycitronellal solution
  • 3,7-DIMETHYL-7-HYDROXYOCTANAL
  • 7-HYDROXY-3,7-DIMETHYL-1-OCTANAL
  • 7-HYDROXY-3,7-DIMETHYL OCTANAL
  • 7-HYDROXYCITRONELLAL
  • HYDROXY CITRONELLAL PURE FCC
  • (S)-Laurinal
  • HYDROXYCITRONELLAL 95+% FCC
  • 7-Hydroxy-3,7-dimethyl-6-octenal
  • OH-CITRONELLAL
  • 7-HYDROXYCITRONELLAL/PHIXIA/LILYL ALDEHYDE/CYCLOSIA/FIXOL/CYCLALIA
  • Hycelea
  • 3,7-DIMETHYL-7-HYDROXYOCTANAL 98%
  • 7-hydroxy-3，7-dimethylloctanal
  • [S,(-)]-7-Hydroxy-3,7-dimethyloctanal
  • [R,(+)]-7-Hydroxy-3,7-dimethyloctanal
  • hydroxycitoronellal
  • 3,7-Dimethyl-7-hydroxyoctanal,98%
  • 3,7-Dimethyl-7-hydroxyoctanalHydroxycitronellal
  • HYDROXYCITRONELLAL(SG)
  • 3,7-DiMethyl-7-hydroxyoctanal, 98% 25ML
  • Hydroxycitronellal A
  • Hydroxy-citronellal@1000 μg/mL in Acetonitrile
  • 3,7-Dimethyl-7-hydroxyoctanal USP/EP/BP
  • HYDROXYCTRONELLAL
  • CAS No.107-75-5 3,7-Dimethyl-7-hydroxyoctanal
  • 3,7-Dimethyl-7-hydroxyoctanal, 97%,
  • 107-75-5
  • ALDEHYDE
  • Chemical Synthesis
  • Organic Building Blocks
  • Aldehydes
  • Building Blocks