O-Cymen5-Ol is a natural product, an alkylbenzene, which occurs naturally in the plant kingdom (Salvia rosmarinus) and is produced industrially by chemical synthesis as 4-isopropyl-3-methylphenol.

It occurs as a white crystalline powder insoluble in water, soluble in organic solvents, such as in ethanol 36% solubility, methanol 65%, isopropyl alcohol 50%, n-butanol 32%, acetone 65%.

What it is used for and where

Cosmetics

It is a relatively new product that is used as a bactericide and antiseptic in face and personal care creams. It is present in many toothpastes as a bactericide and to improve the rate of gum bleeding (1).

Medical

Oral disinfectant, mouthwash.

Appearance	White crystalline powder
pH	3.00-5.00
Boiling Point	233.8±9.0°C at 760 mmHg
Melting Point	111-114 °C
Flash Point	104.1±7.2 °C
Density	1.0±0.1 g/cm3
PSA	20.23000
LogP	3.28
Index of Refraction	1.523
Vapour Pressure	0.0±0.5 mmHg at 25°C
Ferric ion	≤2ppm
Water	≤0.20%
Safety

• Molecular Formula  C₁₀H₁₄O
• Linear Formula    (CH₃)₂CHC₆H₃(CH₃)OH
• Molecular Weight     150.22
• Exact Mass   150.104462
• CAS  3228-02-2
• UNII    H41B6Q1I9L
• EC Number   221-761-7
• DSSTox Substance ID  DTXSID10186026
• IUPAC  3-methyl-4-propan-2-ylphenol
• InChI=1S/C10H14O/c1-7(2)10-5-4-9(11)6-8(10)3/h4-7,11H,1-3H3  
• InChl Key      IJALWSVNUBBQRA-UHFFFAOYSA-N
• SMILES   CC1=C(C=CC(=C1)O)C(C)C
• MDL number  MFCD00010704
• PubChem Substance ID    24859017
• ChEBI  34429
• RXCUI    1364387
• NSC   62111
• RTECS   GZ7170000 

Synonyms:

• 4-isopropyl-3-methylphenol
• 3-methyl-4-propan-2-ylphenol
• 4-Isopropyl-m-cresol
• 3-Methyl-4-(1-methylethyl)phenol
• IPMP

References______________________________________________________________________

(1) Otal, F. J. M., Sobrino, M. D., Cuadras, F. V., & Notario, I. Z. (2020). Eficacia frente al sangrado gingival de una pasta dental con o-cymen5-ol. Científica dental: Revista científica de formación continuada, 17(1), 41-48.