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| | L-Menthol Basic information |
| Product Name: | L-Menthol | | Synonyms: | (1R,2S,5R)-(-)-MENTHOL, 99+%, SUBLIMED;L-MENTHOL 99+% NATURAL FCC;L-MENTHOL, 99+%;(1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexanol;Cyclohexanol, 5-methyl-2-(1-methylethyl)-, [1R-(1α,2,5α)]-;(1R,2S,5R)-(L)-Menthol;Mentol Crysta;L-MENTHOL, BP 99+% | | CAS: | 2216-51-5 | | MF: | C10H20O | | MW: | 156.27 | | EINECS: | 218-690-9 | | Product Categories: | Inhibitors;Organics;chiral;Biochemistry;Terpenes;Terpenes (Others);for Resolution of Acids;Monocyclic Monoterpenes;Optical Resolution;Synthetic Organic Chemistry;API;2216-51-5 | | Mol File: | 2216-51-5.mol |  |
| | L-Menthol Chemical Properties |
| Melting point | 41-45 °C (lit.) | | Boiling point | 212 °C (lit.) | | alpha | -51 º (589nm, c=10, EtOH) | | density | 0.89 g/mL at 25 °C (lit.) | | vapor pressure | 0.8 mm Hg ( 20 °C) | | FEMA | 2665 | MENTHOL RACEMIC | | refractive index | 1.46 | | Fp | 200 °F | | storage temp. | Store below +30°C. | | solubility | 490mg/l | | form | Crystals or Crystalline Needles | | pka | 15.30±0.60(Predicted) | | Specific Gravity | 0.89 | | color | Colorless to white | | Odor | at 10.00 % in dipropylene glycol. peppermint cooling mentholic minty | | Odor Type | mentholic | | optical activity | [α]22/D 49°, c = 10 in 95% ethanol | | Water Solubility | insoluble | | Merck | 14,5837 | | BRN | 1902293 | | Stability: | Stable. | | InChIKey | NOOLISFMXDJSKH-KXUCPTDWSA-N | | LogP | 3.15 at 25℃ | | CAS DataBase Reference | 2216-51-5(CAS DataBase Reference) | | NIST Chemistry Reference | Cyclohexanol, 5-methyl-2-(1-methylethyl)-, [1R-(1«alpha»,2«beta»,5«alpha»)]-(2216-51-5) | | EPA Substance Registry System | Levomenthol (2216-51-5) |
| | L-Menthol Usage And Synthesis |
| Chemical Properties | white to light yellow crystal powde | | Uses | (1R,2S,5R)-(-)-Menthol (L-Menthol) is the natural form of Menthol. L-Menthol is used as: refreshing agent, food flavor,
cool and antipruritic drug, carminative drug. Menthol crystals is used for pers
onal care and cosmetics. | | Uses | L-Menthol is used as a cooling agent that strongly activates TRPM8.(Transient Receptor Potential Cation Channel, Subfamily M, Member 8 is a Protein Coding gene). It is used as analgesic (topical), antipruritic agent. It is used as: refreshing agent, food flavor, cool and antipruritic drug, carminative drug. Menthol crystals is used for pers onal care and cosmetics. | | Definition | ChEBI: A p-menthan-3-ol which has (1R,2S,5R)-stereochemistry. It is the most common naturally occurring enantiomer. | | General Description | Produced and qualified by HWI pharma services GmbH.
Exact content by quantitative NMR can be found on the certificate. | | Flammability and Explosibility | Nonflammable | | Biochem/physiol Actions | Taste at 25 ppm | | Safety Profile | Poison by intravenous
route. Moderately toxic by ingestion,
intraperitoneal, and subcutaneous routes. An
eye irritant. Mutation data reported. When
heated to decomposition it emits acrid
smoke and irritating fumes. | | Purification Methods | Crystallise menthol from CHCl3,pet ether or EtOH/water. [Barrow & Atkinson J Chem Soc 638 1939, Beilstein 6 III 133, 6 IV 150.] |
| | L-Menthol Preparation Products And Raw materials |
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