2-5-Dimethylthiophene（CAS#638-02-8）
| Risk Codes | R10 – Flammable R37 – Irritating to the respiratory system R20/22 – Harmful by inhalation and if swallowed. |
| Safety Description | S23 – Do not breathe vapour. S24/25 – Avoid contact with skin and eyes. S16 – Keep away from sources of ignition. S36 – Wear suitable protective clothing. S33 – Take precautionary measures against static discharges. S29 – Do not empty into drains. S7/9 - S3/7/9 - |
| UN IDs | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| HS Code | 29349990 |
| Hazard Class | 3 |
| Packing Group | II |
Introduction
2,5-Dimethylthiophene is an organic compound. It is a low-toxicity and non-flammable liquid that is pale yellow to colorless at room temperature.
Quality:
2,5-Dimethylthiophene has good solubility and is soluble in organic solvents such as alcohols, ethers and chlorinated hydrocarbons. It has a strong thiomycin flavor and has a slight foul odor in the air.
Use:
Method:
A common preparation method for 2,5-dimethylthiophene is obtained by the reaction of thiophene and methyl bromide.
Safety Information:
2,5-dimethylthiophene has low toxicity, but it is still necessary to pay attention to safe operation. Skin-to-eye contact should be avoided during contact, protective gloves, glasses should be worn, and appropriate protective equipment should be used outside the laboratory. When used or stored, it should be kept away from fire sources and oxidants, and well ventilated conditions should be maintained. If ingested or inhaled, seek medical attention immediately.
