Linalool CAS 78-70-6, Linalool, CAS 78-70-6
Monoterpene alcohol, containing asymmetric carbon atoms, with α/β isomers and two enantiomers: left-handed ((−)-Linalool) and right-handed ((+)-Linalool).
78-70-6
C10H18O
154.25
201-134-4
| CAS | 78-70-6 |
| Molecular formula | C10H18O |
| Molecular weight | 154.25 |
| EIENCS | 201-134-4 |
| Form | Liquid |
| Melting point | 25°C |
| boling point | 194-197°C/720 mmHg |
| Density | 0.87 g/mL at 25°C |
| Solubility | ethanol: soluble1ml/4ml, clear, colorless (60% ethanol) |
| PKA | 14.51±0.29(Predicted) |
| Color | Clear colorless to pale yellow |
| Storage temp | 2-8°C |
Molecular formula and structure
Molecular formula: C₁₀H₁₈O
Molecular weight: 154.25 g/mol
Structure: Monoterpene alcohol, containing asymmetric carbon atoms, with α/β isomers and two enantiomers: left-handed ((−)-Linalool) and right-handed ((+)-Linalool).
Appearance: Colorless, oily, transparent liquid with a fresh lily of the valley fragrance. The left-handed form is slightly sweet and smooth (specific rotation -20.1 °), while the right-handed form is slightly fresh (specific rotation +19.3°).
1. Flavor and fragrance industry
● The core of the fragrance: With an annual global consumption of over 15,000 tons, 90% of the perfumes contain linalool, which is used in floral fragrances (jasmine, lily of the valley), fruity fragrances (citrus, blueberry), and woody fragrances.
● Representative products
○ Bulgari Darjeeling Tea (Woody Top Note)
○ Shai LAN Blueberry Musk (Fruity Carrier)
● Special application: Pure camphor tree leaf oil can mask the chemical odor of hair dyes, and its effect is better than that of synthetic products.
2. Pharmaceuticals and Fine Chemicals
● Vitamin E synthesis: The raw material for the key precursor isphytanol, accounting for 55% of the global demand for chemical raw materials (55,000 tons per year).
● Drug activity: It has antibacterial, anti-inflammatory and sedative effects and is used as an intermediate in essential oil therapy and anti-tumor drugs (such as cissone lactone).
3. Food and Daily Chemicals
● Edible flavoring: FEMA 2635 certified, used for flavors such as lemon, peach, and chocolate.
● Daily chemical additives: They are used to regulate viscosity and aroma in shampoos and skin care products. The annual global demand for cosmetic fragrances accounts for over 30%.
● Toxicity data
○ Oral administration of LD₅₀ in rats: 2.8 g/kg (low toxicity).
○ Allergenicity: One of the 26 perfume allergens in the European Union, high concentrations may cause dermatitis or asthma.
● Storage and transportation
○ Light-proof and sealed, temperature <25℃; Do not use strong oxidants (flammable).
○ Transport Code: UN 1993 (Class III Dangerous Goods).
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