1,4-Dichloro-2-butyne
- CAS NO.：821-10-3
- Empirical Formula: C4H4Cl2
- Molecular Weight: 122.98
- MDL number: MFCD00000981
- EINECS: 212-474-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-03-10 17:18:44
What is 1,4-Dichloro-2-butyne?
Chemical properties
CLEAR COLORLESS TO YELLOWISH LIQUID
The Uses of 1,4-Dichloro-2-butyne
1,4-Dichloro-2-butyne used in the synthesis of 1,4-disubstituted 1,2,3-triazoles. Also, it is used in the approach of the 20S-camptothecin family of antitumor agents.
Safety Profile
Poison by intravenous route. When heated to decomposition it emits toxic fumes of Cl-. Probably a dangerous fKe and explosion hazard. See also ACETYLENE COMPOUNDS and CHLORINATED HYDROCARBONS, ALIPHATIC
Properties of 1,4-Dichloro-2-butyne
| Melting point: | 162-165 °C |
| Boiling point: | 165-168 °C (lit.) |
| Density | 1.258 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 320 °F |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly) |
| form | Oil |
| color | Clear Colourless |
| Sensitive | Light Sensitive |
| BRN | 635740 |
| CAS DataBase Reference | 821-10-3(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Butyne, 1,4-dichloro-(821-10-3) |
| EPA Substance Registry System | 1,4-Dichloro-2-butyne (821-10-3) |
Safety information for 1,4-Dichloro-2-butyne
| Signal word | Warning |
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H301:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. 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. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. P501:Dispose of contents/container to..… |
Computed Descriptors for 1,4-Dichloro-2-butyne
| InChIKey | RCHDLEVSZBOHOS-UHFFFAOYSA-N |
1,4-Dichloro-2-butyne manufacturer
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product: 821-10-3 1,4-Dichloro-2-butyne 98%
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