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.

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.chemicalchem.com/archives/28788

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