Toluene diisocyanate manufacturer Knowledge (R)-(+)-Longifolia Menthone

(R)-(+)-Longifolia Menthone

(R)-(+)-Longleaf Menthone Structural Formula

Structural formula

Business number 021D
Molecular formula C10H16O
Molecular weight 152.23
label

(5R)-5-Methyl-2-(1-methylethylene)cyclohexanone,

longifolia menthone,

pulegone,

(R)-2-Isopropylidene-5-methylcyclohexanone,

(R)-p-Menth-4(8)-en-3-one

Numbering system

CAS number:89-82-7

MDL number:MFCD00063000

EINECS number:201-943-2

RTECS number:OT0261000

BRN number:2040703

PubChem number:24887985

Physical property data

1. Properties: colorless oily liquid.

2. Density (g/mL, 25/4℃): 0.9346

3. Relative vapor density (g/mL, air=1): Undetermined

4. Melting point (ºC) undetermined

5. Boiling point (ºC, normal pressure): 223~224

6. Boiling point (ºC, 5.2kPa): Undetermined

7. Refractive index (n20D): 1.4894

8. Flash point (ºC): 82

9. Specific rotation (º): [α]D20 +21

10. Autoignition point or ignition temperature (ºC): Undetermined

11. Vapor pressure (kPa, 25ºC): Undetermined

12. Saturated vapor pressure (kPa, 60ºC): Undetermined

13. Heat of combustion (KJ /mol): Undetermined

14. Critical temperature (ºC): Undetermined

15. Critical pressure (KPa): Undetermined

16. Oil and water Log value of the (octanol/water) partition coefficient: Undetermined

17. Explosion upper limit (%, V/V): Undetermined

18. Explosion lower limit (%, V /V): Undetermined

19. Solubility: Miscible with ethanol, ether, and chloroform, almost insoluble in water.

Toxicological data

None

Ecological data

None

Molecular structure data

1. Molar refractive index: 45.98

2. Molar volume (cm3/mol): 164.8

3. Isotonic specific volume (90.2K ): 384.2

4. Surface tension (dyne/cm): 29.5

5. Polarizability (10-24cm3): 18.23

CalculateAcademic data

1. Hydrophobic parameter calculation reference value (XlogP): 2.8

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 1

4. Number of rotatable chemical bonds: 0

5. Number of tautomers: 5

6. Topological molecular polar surface area (TPSA): 17.1

p>

7. Number of heavy atoms: 11

8. Surface charge: 0

9. Complexity: 197

10. Number of isotope atoms : 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain number of atomic stereocenters: 1

13. Determine the chemical bond configuration Number of centers: 0

14. Number of uncertain chemical bond stereocenters: 0

15. Number of covalent bond units: 1

Properties and stability

1. Found in tobacco leaves.

Storage method

This product should be sealed with argon and stored at 4℃.

Synthesis method

1. It can be obtained by oxidation of dihydrocarvacrol or reduction of carvone.

Purpose

Preparation of chiral compounds.

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