2,5-Dihydroxy-p-cymene
- CAS NO.：2217-60-9
- Empirical Formula: C10H14O2
- Molecular Weight: 166.22
- MDL number: MFCD00045782
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-07-16 07:06:08
What is 2,5-Dihydroxy-p-cymene?
Chemical properties
Thymohydroquinone is a Prismatic crystals. Sublimes when heated. Soluble in hot water and alcohol, Practically insoluble in oils. The taste is equally woody-herbaceous, spicy, woody-Fennel-like at concentrations near 20 ppm.
The Uses of 2,5-Dihydroxy-p-cymene
Thymohydroquinone is a component of Black Cumin Seed Oil and Thyme. It is also a┬аreduction product of┬аThymoquinone (T413500), which is a phytochemical compound found in the plant Nigella sativa. Thymoquinone exhibits antioxidant and analgesic properties.
What are the applications of Application
2,5-Dihydroxy-p-cymene has been suggested for use in perfume compositions, and years ago also in flavors.
Preparation
2,5-Dihydroxy-p-cymene is prepared by reduction of Thymoquinone with Sulfurous acid or with the aid of a catalyst.
Properties of 2,5-Dihydroxy-p-cymene
| Melting point: | 148°C |
| Boiling point: | 290°C (estimate) |
| Density | 1.0060 (rough estimate) |
| refractive index | 1.5277 (estimate) |
| storage temp. | Store at -20°C |
| solubility | DMF: 1 mg/mL; DMSO: 1 mg/mL; Ethanol: 2 mg/mL; Ethanol:PBS (pH 7.2) (1:9): 0.1mg/mL |
| form | A crystalline solid |
| pka | 11.11±0.23(Predicted) |
| color | White to off-white |
| Odor | fennel |
| Water Solubility | Slightly soluble in cold water. Soluble in hot water and alcohol |
Safety information for 2,5-Dihydroxy-p-cymene
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2,5-Dihydroxy-p-cymene
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