Molecular Formula | C10H16O |
Molar Mass | 152.23 |
Density | 0.928g/mLat 20°C(lit.) |
Melting Point | n-(+)-dihydrarvone, ~77% |
Boling Point | 87-88°C/6mmHg |
Specific Rotation(α) | +17°(22℃,neat) |
Flash Point | 102°C |
JECFA Number | 377 |
Solubility | Insoluble in water, soluble in ethanol |
Appearance | Clear |
Specific Gravity | 0.929 |
Color | Clear |
BRN | 2044615 |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | n20/D 1.471 |
MDL | MFCD00001636 |
Safety Description | S23 - Do not breathe vapour. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
HS Code | 29142900 |
FEMA | 3565 | P-MENTH-8-EN-2-ONE |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Overview | , may be added as edible and cosmetic flavors in confectionery, beverages, toothpaste and perfumes. Colorless to yellow liquid; Strong strong herb-like odor, spearmint flavor; Boiling point 1-220 ℃; Density L-D4150.929; Refractive index L-nD201.47348; optical rotation L-[α]D-15.6 ° (combined product [α]D20-18 ~-19 °); Insoluble in water, soluble in ethanol.|
150 | a method for synthesizing dihydrocarvone with epoxy limonene, comprising the following steps: Step 1, 500g of epoxy limonene was added to a 140 mL reaction kettle, 3g of ZnBr2 was added under stirring, and then the temperature was raised to 145-° C. To react for about 3 hours. After completion of the reaction, GC showed that 30g of white oil was added to the reaction solution, followed by distillation under reduced pressure to obtain 97.5% G of dihydrocarvone, the content of which was analyzed by GC and the yield of the product was 67%. In step 2, 50g of the kettle liquid (containing white oil) obtained by the above rectification is added into a 500 mL reactor, then 140g of epoxy limonene is added, and the reaction is carried out at 145 ~ ℃ for about 4 hours, after the end of the GC analysis reaction, vacuum distillation was carried out to obtain 195g of dihydrocarvone finished product, the GC analysis content was 97%, and the product yield was 65%. The second step was repeated twice, and the reaction time was correspondingly prolonged by about one hour. The average content was 97%, and the yield was 64.5%. The steps were repeated two more times, and the reaction time was correspondingly prolonged by about one hour at each repetition. As a result, the average content was 97%, and the yield was 63.5%. The catalytic efficiency was not significantly reduced. |