1,5-HEXADIYNE
- CAS NO.：628-16-0
- Empirical Formula: C6H6
- Molecular Weight: 78.11
- MDL number: MFCD00014924
- EINECS: 211-029-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:31
What is 1,5-HEXADIYNE?
The Uses of 1,5-HEXADIYNE
1,5-Hexadiyne is used in the preparation of bisdehydro[12]annulene and biphenylene. It is also used as an important starting material in the preparation of (5Z,9Z)-5,9-hexadecadienoic acid. Further, it is involved in the preparation of linear organotin polymers by reaction with organotin dihydrides.
Definition
ChEBI: Hexa-1,5-diyne is an alkadiyne and a terminal acetylenic compound.
Properties of 1,5-HEXADIYNE
| Melting point: | -6°C |
| Boiling point: | 86°C(lit.) |
| Density | 0,805 g/cm3 |
| refractive index | 1.4400 to 1.4440 |
| Flash point: | -7°C |
| form | Liquid |
| color | Colorless to Yellow |
| Water Solubility | Immiscible with water. |
| Exposure limits | ACGIH: TWA 1000 ppm OSHA: TWA 1000 ppm(2950 mg/m3) NIOSH: IDLH 1500 ppm; TWA 120 ppm(350 mg/m3); Ceiling 610 ppm(1800 mg/m3) |
| CAS DataBase Reference | 628-16-0(CAS DataBase Reference) |
| EPA Substance Registry System | 1,5-Hexadiyne (628-16-0) |
Safety information for 1,5-HEXADIYNE
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H225:Flammable liquids H304:Aspiration hazard H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H336:Specific target organ toxicity,single exposure; Narcotic effects H411:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. 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. |
Computed Descriptors for 1,5-HEXADIYNE
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