Product Description of 2,5-Dichloro-3-acetylthiophene CAS#36157-40-1
2,5-Dichloro-3-acetylthiophene, alternatively named 3-acetyl-2,5-dichlorothiophene, is an organic substance with the molecular formula C₆H₄Cl₂OS, molecular weight of 195.07, CAS number 36157-40-1 and EINECS number 252-893-3. It is offered in solid form, with a boiling point of 233.9 ± 40.0°C (760 mmHg), density of 1.5 ± 0.1 g/cm³ and flash point of 95.3 ± 27.3°C.
This chemical poses a moderate risk to aquatic ecosystems, so discharging it directly into water bodies without adequate treatment is prohibited. It retains satisfactory stability under regular conditions and resists decomposition. To maintain its quality, it must be kept in a hermetically sealed vessel within a cool, dry and properly ventilated space.

3-Acetyl-2,5-Dichlorothiophene Chemical Properties
Melting point | 37-40 °C (lit.) |
Boiling point | 120-122°C 4mm |
density | 1.4514 (estimate) |
Fp | >230 °F |
storage temp. | Keep in dark place,Inert atmosphere,2-8°C |
form | solid |
color | White to Yellow to Orange |
BRN | 121288 |
CAS DataBase Reference | 36157-40-1(CAS DataBase Reference) |
NIST Chemistry Reference | 2,5-Dichloro-3-thienyl methyl ketone(36157-40-1) |
Hazard Codes | Xn,Xi |
Risk Statements | 20/21/22-36/37/38 |
Safety Statements | 26-36-36/37/39-22-36/37 |
WGK Germany | 3 |
Hazard Note | Irritant |
HS Code | 29349990 |

Product Application of 3-Acetyl-2,5-Dichlorothiophene CAS#36157-40-1
3-Acetyl-2,5-dichlorothiophene serves as an intermediate for organic and pharmaceutical synthesis, widely utilized in laboratory research, product development and chemical production workflows.


