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16254

Sigma-Aldrich

Thymol

meets analytical specification of Ph. Eur., BP, NF, 99-101%

Synonym(s):
2-Isopropyl-5-methylphenol, 5-Methyl-2-(1-methylethyl)phenol, 5-Methyl-2-isopropylphenol, IPMP
Linear Formula:
2-[(CH3)2CH]C6H3-5-(CH3)OH
CAS Number:
Molecular Weight:
150.22
Beilstein:
1907135
EC Number:
MDL number:
eCl@ss:
39023311
PubChem Substance ID:
NACRES:
NA.47

vapor pressure

1 mmHg ( 64 °C)

Quality Level

assay

99-101%

form

solid

quality

meets analytical specification of Ph. Eur., BP, NF

impurities

acidic reac. impurities, complies
organic volatile impurities, complies (GC)
related subst., complies (GC)
residual solvents, complies
≤0.05% non-volatile matter

bp

232 °C (lit.)

mp

48-51 °C (lit.)
48-51 °C

density

0.965 g/mL at 25 °C (lit.)

suitability

complies for appearance of solution

SMILES string

CC(C)c1ccc(C)cc1O

InChI

1S/C10H14O/c1-7(2)9-5-4-8(3)6-10(9)11/h4-7,11H,1-3H3

InChI key

MGSRCZKZVOBKFT-UHFFFAOYSA-N

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Application

Thymol has been used to study:
  • the effect of thymol on the viability of Bacillus cereus.
  • its effect on growth and production of citrinin from Penicillium citrinum.
  • the effect of thymol on insect and human γ-aminobutyric acid (GABA) receptors.

Biochem/physiol Actions

Thymol (5-methyl-2-isopropylphenol), a monocyclic phenolic compound, is a vital constituent of Thymus vulgaris essential oil. It has been used in dental preparations to kill odor-producing bacteria. Thymol serves as a preservative through its antimicrobial and antioxidant properties. In addition, thymol also has molluscicidal and insecticidal properties. Thymol acts as an allosteric modulator of human γ-aminobutyric acid (GABAA) receptors.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 2

Flash Point(F)

240.8 °F - closed cup

Flash Point(C)

116 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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