L-Menthyl acetate
L-Menthyl acetate
CAS: 2623-23-6
Molecular Formula: C12H22O2
L-Menthyl acetate - Names and Identifiers
L-Menthyl acetate - Physico-chemical Properties
| Molecular Formula | C12H22O2 |
| Molar Mass | 198.3 |
| Density | 0.92g/mLat 25°C(lit.) |
| Melting Point | <25 °C |
| Boling Point | 229-230°C(lit.) |
| Specific Rotation(α) | -81°(20/D, c=8, C6H6) |
| Flash Point | 171°F |
| JECFA Number | 431 |
| Solubility | Chloroform (Slightly), Methanol (Slightly) |
| Vapor Presure | n20/D 1.447(lit.) |
| Appearance | Colorless liquid |
| Specific Gravity | 0.922 |
| Color | Colourless |
| Merck | 14,5839 |
| BRN | 2208505 |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | n20/D 1.447(lit.) |
| MDL | MFCD00001482 |
| Physical and Chemical Properties | There are l-type and dl-type, generally edible refers to l-type. Colorless or slightly yellow transparent liquid. It has a soft mint and berry aroma, and has a cool and spicy feeling. Boiling point 227~228 ℃, flash point 92 ℃, optical rotation -72 47 '~ 73 18'. Soluble in ethanol, propylene glycol and most non-volatile oils, slightly soluble in water and glycerin. Natural products are found in pepper-like peppermint oil, etc. |
L-Menthyl acetate - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| UN IDs | NA 1993 / PGIII |
| WGK Germany | 3 |
| RTECS | AI5900000 |
| TSCA | Yes |
| HS Code | 2915 39 00 |
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 5000 mg/kg |
L-Menthyl acetate - Reference Information
| introduction | acetic acid-L-menthyl ester is also called L-menthyl acetate, acetic acid-L-menthyl ester exists in many varieties of peppermint oil. There are reports that it can be used for the resolution of some chiral amines. |
| preparation method | L-menthol (57.4g;0.37mol) was dissolved in methyl acetate (57.4g;0.29mol) and reacted with ketene at 90°C. The conversion was completed after 6 hours, and GC showed that the crude product already contained 99% weight of acetic acid-L-montelyl ester. |
| biological activity | Menthyl acetate (L-Menthyl acetate) is a derivative of L-menthol. Menthyl acetate can effectively enhance 5-aminolevulinic acid (ALA) skin penetration. |
| chemical properties | there are l-type and dl-type, and general consumption refers to l-type. Colorless or slightly yellow transparent liquid. It has a soft mint and berry aroma, and has a cool and spicy feeling. Boiling point 227~228 ℃, flash point 92 ℃, optical rotation -72 47 '~ 73 18'. Soluble in ethanol, propylene glycol and most non-volatile oils, slightly soluble in water and glycerin. Natural products are found in pepper-like peppermint oil, etc. |
| use | GB 2760-1996 specified as allowed edible spices. Mainly used to prepare mint, fruit and berry flavors. |
| production method | is obtained from single separation of pepper-like peppermint oil (type l). In the presence of anhydrous sodium acetate, it is obtained by washing and distillation after the reaction of menthol and acetic anhydride (dl type). |
| EPA chemical information | information provided by: ofmpub.epa.gov (external link) |
Last Update：2024-04-09 21:21:28
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