PRODUCT Properties
| Melting point: | -24.1°C (estimate) | 
                                    
| Boiling point: | 124 °C | 
                                    
| Density | 0.975 g/mL at 25 °C(lit.) | 
                                    
| vapor density | 1 (vs air) | 
                                    
| refractive index | n | 
                                    
| Flash point: | 85 °F | 
                                    
| storage temp. | Sealed in dry,2-8°C | 
                                    
| pka | 13.28±0.20(Predicted) | 
                                    
| form | clear liquid | 
                                    
| color | Colorless to Yellow to Green | 
                                    
| Water Solubility | Slightly soluble in water. | 
                                    
| BRN | 1098409 | 
                                    
| InChIKey | LBSKEFWQPNVWTP-UHFFFAOYSA-N | 
                                    
| CAS DataBase Reference | 4187-86-4(CAS DataBase Reference) | 
                                    
Description and Uses
1-Pentyn-3-ol is used as a pharmaceutical intermediate.
Safety
| Symbol(GHS) | ![]() ![]() GHS02,GHS06  | 
                                    
| Signal word | Danger | 
| Hazard statements | H226-H301-H311-H331 | 
| Precautionary statements | P210-P233-P240-P241+P242+P243-P264-P270-P301+P310+P330-P303+P361+P353-P370+P378-P403+P235-P405-P501-P261-P280-P301+P310-P311-P260-P280f-P307+P311 | 
| Hazard Codes | T | 
| Risk Statements | 10-23/24/25 | 
| Safety Statements | 16-36/37/39-45 | 
| RIDADR | UN 1986 3/PG 3 | 
| WGK Germany | 3 | 
| RTECS | SC4758500 | 
| HazardClass | 3 | 
| PackingGroup | III | 
| HS Code | 29052900 | 
| Limited Quantities | 5.0 L (1.3 gallons) (liquid) | 
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) | 








