2,5-Dichlorothiophene
- CAS NO.：3172-52-9
- Empirical Formula: C4H2Cl2S
- Molecular Weight: 153.03
- MDL number: MFCD00005423
- EINECS: 221-638-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-07-08 20:25:11
What is 2,5-Dichlorothiophene?
Chemical properties
clear colorless to slightly yellow liquid
The Uses of 2,5-Dichlorothiophene
2,5-Dichlorothiophene is mainly used as a pharmaceutical intermediate. It is used in the synthesis of 3,4-disubstituted thiophenes.
Synthesis Reference(s)
Tetrahedron, 52, p. 8863, 1996 DOI: 10.1016/0040-4020(96)00433-4
Properties of 2,5-Dichlorothiophene
| Melting point: | -41--40°C |
| Boiling point: | 162 °C (lit.) |
| Density | 1.442 g/mL at 25 °C (lit.) |
| refractive index | 1.561-1.563 |
| Flash point: | 59 °C |
| storage temp. | 2-8°C |
| form | liquid |
| color | Colorless to Light yellow to Light orange |
| Specific Gravity | 1.442 |
| BRN | 109887 |
| CAS DataBase Reference | 3172-52-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Thiophene, 2,5-dichloro-(3172-52-9) |
| EPA Substance Registry System | Thiophene, 2,5-dichloro- (3172-52-9) |
Safety information for 2,5-Dichlorothiophene
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08 |
| GHS Hazard Statements |
H226:Flammable liquids H300:Acute toxicity,oral H310:Acute toxicity,dermal H341:Germ cell mutagenicity |
| Precautionary Statement Codes |
P201:Obtain special instructions before use. P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P262:Do not get in eyes, on skin, or on clothing. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P405:Store locked up. P403+P235:Store in a well-ventilated place. Keep cool. P501:Dispose of contents/container to..… |
Computed Descriptors for 2,5-Dichlorothiophene
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