3,4,5-Trimethoxyphenol
- CAS NO.：642-71-7
- Empirical Formula: C9H12O4
- Molecular Weight: 184.19
- MDL number: MFCD00008389
- EINECS: 211-387-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-10-28 23:16:16
What is 3,4,5-Trimethoxyphenol?
Chemical properties
light yellow to brown crystalline powder
The Uses of 3,4,5-Trimethoxyphenol
3,4,5-Trimethoxyphenol is a useful synthetic intermediate in the synthesis of Thymonin (T413210); a flavonoid compound with potential antioxidant activity against peroxyl radicals.
Definition
ChEBI: A member of the class of phenols that is phenol substituted by methoxy groups at positions 3, 4 and 5.
Purification Methods
Recrystallise the phenol from 10 times its weight of H2O (white needles, m 148o). The acetyl derivative crystallises as elongated prisms from EtOH with m 74o. [Chapman et al. J Chem Soc 3028 1927, Shriner et al. J Am Chem Soc 61 2325 1939, Beilstein 6 H 1154, 6 II 1118, 6 III 6656.]
Properties of 3,4,5-Trimethoxyphenol
| Melting point: | 145-149 °C |
| Boiling point: | 278.13°C (rough estimate) |
| Density | 1.2067 (rough estimate) |
| refractive index | 1.4345 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Soluble in chloroform. |
| form | Powder and/or Chunks |
| pka | 9.72±0.23(Predicted) |
| color | Light yellow to beige to light brown |
| Sensitive | Light Sensitive |
| BRN | 1958573 |
| CAS DataBase Reference | 642-71-7(CAS DataBase Reference) |
| NIST Chemistry Reference | Phenol, 3,4,5-trimethoxy-(642-71-7) |
Safety information for 3,4,5-Trimethoxyphenol
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P337+P313:IF eye irritation persists: Get medical advice/attention. |
Computed Descriptors for 3,4,5-Trimethoxyphenol
| InChIKey | VTCDZPUMZAZMSB-UHFFFAOYSA-N |
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product: 3,4,5-Trimethoxyphenol 98%
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