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2216-51-5

Basic Information
CAS No.: 2216-51-5
Name: Cyclohexanol,5-methyl-2-(1-methylethyl)-, (1R,2S,5R)-
Molecular Structure:
Molecular Structure of 2216-51-5 (Cyclohexanol,5-methyl-2-(1-methylethyl)-, (1R,2S,5R)-)
Formula: C10H20O
Molecular Weight: 156.30
Synonyms: Cyclohexanol,5-methyl-2-(1-methylethyl)-, [1R-(1a,2b,5a)]-;Menthol, (1R,3R,4S)-(-)- (8CI);(-)-Menthol;(-)-Menthylalcohol;(-)-trans-p-Methan-cis-3-ol;(1R)-(-)-Menthol;(1R,2S,5R)-(-)-Menthol;(1R,2S,5R)-2-Isopropyl-5-methylcyclohexan-1-ol;(1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol;(R)-(-)-Menthol;L-Menthol;Levomenthol;NSC 62788;
EINECS: 218-690-9
Density: 0.89 g/cm3
Melting Point: 41-44 °C(lit.)
Boiling Point: 215.383 °C at 760 mmHg
Flash Point: 93.333 °C
Solubility: insoluble in water
Appearance: white to light yellow crystal powder
Hazard Symbols: IrritantXi
Risk Codes: 37/38-41-36/37/38
Safety: 26-39-37/39-36
Transport Information:
PSA: 20.23000
LogP: 2.43950
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  • L-Menthol 2216-51-5

  • Casno:

    2216-51-5

    MSDS/COA Download

    L-Menthol 2216-51-5

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    Product Name: L-Menthol Synonyms: NATURAL MENTHOL;(-)-MENTHOL;MENTHOL;MENTHOL, (-)-;LEVO-MENTHOL;LEVOMENTHOLUM;L-P-MENTHAN-3-OL;L-MENTHAN-3-OL CAS: 2216-51-5 MF: C10H20O MW: 156.27 EINECS: 218-690-9 Product Categories: Biochemistry;Terp

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  • Good quality Natural Menthol Crystal

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    Good quality Natural Menthol Crystal Product name L-Menthol CAS 2216-51-5 Appearance white powder Molecular formula C10H20O MW 220.334 Purity

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  • 2216-51-5

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    2216-51-5

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  • L-Menthol

  • Casno:

    2216-51-5

    L-Menthol

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Consensus Reports

Reported in EPA TSCA Inventory.

Specification

The L-Menthol is an organic compound with the formula C10H20O. The IUPAC name of this chemical is (1R,2S,5R)-5-methyl-2-propan-2-ylcyclohexan-1-ol. With the CAS registry number 2216-51-5, it is also named as (±)-Menthol. The product's categories are Organics; Chiral; Biochemistry; Terpenes; Terpenes (Others); For Resolution of Acids; Monocyclic Monoterpenes; Optical Resolution; Synthetic Organic Chemistry. Besides, it is a white to light yellow crystal powder, which should be stored in a closed cool and dry place. It can be used flavoring agent in toothpaste, perfume, drinks and candy. It is used as stimulate drug in medicine.

Physical properties about L-Menthol are: (1)ACD/LogP: 3.22; (2)ACD/LogD (pH 5.5): 3.216; (3)ACD/LogD (pH 7.4): 3.216; (4)ACD/BCF (pH 5.5): 163.88; (5)ACD/BCF (pH 7.4): 163.88; (6)ACD/KOC (pH 5.5): 1338.956; (7)ACD/KOC (pH 7.4): 1338.956; (8)#H bond acceptors: 1; (9)#H bond donors: 1; (10)#Freely Rotating Bonds: 2; (11)Polar Surface Area: 20.23 Å2; (12)Index of Refraction: 1.457; (13)Molar Refractivity: 47.833 cm3; (14)Molar Volume: 175.542 cm3; (15)Polarizability: 18.963×10-24cm3; (16)Surface Tension: 29.706 dyne/cm; (17)Density: 0.89 g/cm3; (18)Flash Point: 93.333 °C; (19)Enthalpy of Vaporization: 52.536 kJ/mol; (20)Boiling Point: 215.383 °C at 760 mmHg; (21)Vapour Pressure: 0.032 mmHg at 25°C.

Preparation: this chemical can be prepared by acetic acid menthyl ester. This reaction will need reagent sodium and solvent diethyl ether, 2-methyl-propan-2-ol, hexamethylphosphoric acid triamide. The yield is about 57%.



Uses of L-Menthol: it can be used to produce p-menthan-3-one at temperature of 20 °C. It will need reagent o-iodoxy benzoic acid and 1-butyl-3-methyl-imidazolium chloride with reaction time of 8 hours. The yield is about 80%.

When you are using this chemical, please be cautious about it as the following:
It is risk of serious damage to eyes. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Besides, this chemical is irritating to eyes, respiratory system and skin. When you are using it, wear suitable gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)SMILES: CC1CCC(C(C1)O)C(C)C
(2)InChI: InChI=1/C10H20O/c1-7(2)9-5-4-8(3)6-10(9)11/h7-11H,4-6H2,1-3H3
(3)InChIKey: NOOLISFMXDJSKH-UHFFFAOYAE
(4)Std. InChI: InChI=1S/C10H20O/c1-7(2)9-5-4-8(3)6-10(9)11/h7-11H,4-6H2,1-3H3
(5)Std. InChIKey: NOOLISFMXDJSKH-UHFFFAOYSA-N

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LD50 intraperitoneal 800mg/kg (800mg/kg)   FAO Nutrition Meetings Report Series. Vol. 44A, Pg. 58, 1967.
cat LD50 oral 800mg/kg (800mg/kg)   FAO Nutrition Meetings Report Series. Vol. 44A, Pg. 58, 1967.
cat LDLo intravenous 34mg/kg (34mg/kg) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION Archives Internationales de Pharmacodynamie et de Therapie. Vol. 63, Pg. 43, 1939.
guinea pig LDLo intraperitoneal 4gm/kg (4000mg/kg)   Archives Internationales de Pharmacodynamie et de Therapie. Vol. 63, Pg. 43, 1939.
mouse LD50 intraperitoneal 6600mg/kg (6600mg/kg)   Farmatsevtichnii Zhurnal Vol. 17(3), Pg. 53, 1962.
mouse LD50 oral 3400mg/kg (3400mg/kg)   Quarterly Journal of Pharmacy & Pharmacology. Vol. 5, Pg. 233, 1932.
mouse LD50 subcutaneous 5gm/kg (5000mg/kg)   FAO Nutrition Meetings Report Series. Vol. 44A, Pg. 58, 1967.
rabbit LD50 skin > 5gm/kg (5000mg/kg)   Food and Cosmetics Toxicology. Vol. 14, Pg. 471, 1976.
rabbit LDLo intraperitoneal 2gm/kg (2000mg/kg)   FAO Nutrition Meetings Report Series. Vol. 44A, Pg. 58, 1967.
rat LD50 intraperitoneal 700mg/kg (700mg/kg) BEHAVIORAL: GENERAL ANESTHETIC

BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION
Journal of Pharmacy and Pharmacology. Vol. 35, Pg. 110, 1983.
rat LD50 oral 3300mg/kg (3300mg/kg)   FAO Nutrition Meetings Report Series. Vol. 44A, Pg. 58, 1967.
rat LD50 subcutaneous 1gm/kg (1000mg/kg)   FAO Nutrition Meetings Report Series. Vol. 44A, Pg. 58, 1967.

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