Log in or Subscribe for FREE to read the full story.

This information has not been reviewed or verified by the Agency or any other authority.

d-menthol and l-menthol being enantiomers, shouldn't they have identical physical properties including the m.p.?.


Melting point: l-Menthol 43-44°C; the USP allows a melting range of 41°-44°C Racemic menthol displays a congealing point at two levels: 27-28°C and 30.5-32°C Boiling point: 212°C This site is not fully supported in Internet Explorer 7 (and earlier versions).

Chromatographic purity Applications:heat analgesia, mechanical allodynia, and a biphasic effect on cold sensitivity in rats. 25G. Welcome to the ECHA website.

To “unsubscribe,” click the link at the bottom of any e-mail we send. Melting Point: 43 Degree Cel. Ground all equipment containing material. Additional names: The name “menthol” commonly refers to the l isomer, which is only one of eight antipodes (chiral or optical isomers) of the molecule: 5-methyl-2-(1-methylethyl) cyclohexanol. This is supported and in line with the melting point of 41-43 °C in the Merck Index (1968). French = menthol; German = menthol; Portuguese = mentol; Spanish = mentol.

Close Find out more on how we use cookies. Privacy Policy Legal Terms Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice. Combustible materials should be stored away from extreme heat and away from strong oxidizing agents. Melting point: 41~44℃ About43℃ 41.5~42.5℃ Solubility: 1g soluble in 5ml of 90%(v/v) alcohol, forming aclear solution: Conforms: Specific rotation-45°~-51° About-50°-49.68° Limit of nonvolatile residue: Not overrun 0.05 under condition of 105℃ 0.01: Organic volatile impurities: Solvent-Usedimethyl sulfoxide: Pass . This is supported and in the same order of melting point 212 °C as reported in The Merck Index (1968).

EINECS :218-690-9 MELTING POINT : 39 C: BOILING POINT: 212 - 215 C. SPECIFIC GRAVITY : 0.89: SOLUBILITY IN WATER: Insoluble - 456 mg/l at 25 C, (freely soluble in glacial acetic acid, soluble in alcohol, chloroform and ether) pH : HENRY'S LAW: 1.52E-05 (atm-m3/mole at 25 C) OH RATE

This website uses cookies to ensure you get the best experience on our websites. How is this possible?

The LibreTexts libraries are Powered by MindTouch ® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Questions? Sample: available Welcome

The melting properties of lidocaine and l-menthol binary systems were studied using differential scanning calorimetry (DSC).A eutectic mixture was obtained for the lidocaine:menthol ratio of 30:70 (w:w) with a eutectic point of 26°C.

© 2020 Allured Business Media. 5-Methyl-2-isopropyl cyclohexan-1-ol, 3-p-methanol, hexahydrothymol, peppermint camphor. All rights reserved. This decrease in one’s sharpness in smelling forces those who both QC batches of menthol production and also work in the area of flavor or fragrance creation to evaluate menthol samples at the end of their working day.

The dual-sensory effect experienced makes both the odor and taste evaluation of menthol a difficult task.

Although other materials are known to display such a cooling effect, almost all of them are derivatives of l-menthol.Organoleptically, l-menthol displays a light, minty, refreshing peppermint odor that at most practical concentrations is complicated by an intense olfactory numbing-cooling sensation. Keep container dry. Information on Registered Substances comes from registration dossiers which have been assigned a registration number. We have advanced extraction, isolation, purification, synthesis, fermentation equipment and technology with rich production experience and strict quality control system, and we have built a perfect sale service system, products are exported to Europe, North and South America, the Middle East and Asia Pacific and other five continents and scale the forefront in the nation, won good international reputation. CAS Registry Number:2216-51-5

Bulk and packaged material in all regions of the world: Topical application of L-menthol induces heat analgesia, mechanical allodynia, and a biphasic effect on cold sensitivity in rats. Typical industry specification is 41-44 °C.

for l-menthol $(\pu{42 ^\circ C}$ to $\pu{45 ^\circ C})$ vs dl-menthol $(\pu{36 ^\circ C}$ to $\pu{38 ^\circ C}).$. Particle size distribution (Granulometry), Solubility in organic solvents / fat solubility, Stability in organic solvents and identity of relevant degradation products, Storage stability and reactivity towards container material, Biodegradation in water and sediment: simulation tests, Additional information on environmental fate and behaviour, Short-term toxicity to aquatic invertebrates, Long-term toxicity to aquatic invertebrates, Toxicity to aquatic algae and cyanobacteria, Toxicity to aquatic plants other than algae, Endocrine disrupter testing in aquatic vertebrates – in vivo, Toxicity to soil macroorganisms except arthropods, Endocrine disrupter mammalian screening – in vivo (level 3), Direct observations: clinical cases, poisoning incidents and other, Exposure related observations in humans: other data, Additional physico-chemical properties of nanomaterials, Toxicokinetics, metabolism and distribution. Molecular Formula:C10H20O I am checking out Wikipedia and it shows a different melting point (m.p.) Chemical Structure: )]- Chemsrc provides L-Menthol(CAS#:2216-51-5) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Himalayan oil it is slightly superior in its appearance and the melting point. Keep in a cool place. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation).

This is supported and in the same order of melting point 212 °C as reported in The Merck Index (1968). My Account The melting point has been experimentally determined in the range between 41.2°C and 41.7°C at the atmospheric pressure of : 1013 hPa. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner. Molecular Weight:176.12 Keep in a cool, well-ventilated place.

The USP lists both products together with their specifications, although they are two different materials with respect to usage and organoleptic properties. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. By mixing l-menthol with an excipient with whisker growth, the hydroxyl group stretching band of l-menthol was shifted to the higher wavenumber in the IR spectrum, the melting point and heat of fusion of l-menthol became lower in the thermal analysis, and the diffraction intensity of l-menthol became lower in the powder X-ray diffraction. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number.

Log out