The CAS register number of is 5-Chloro-1-pentyne 14267-92-6. It also can be called as 1-Pentyne, 5-chloro- and the IUPAC name about this chemical is 5-chloropent-1-yne. The molecular formula about this chemical is C₅H₇Cl and the molecular weight is 102.56. It belongs to the following product categories, such as Miscellaneous; Acetylenes; Functionalized Acetylenes; Alkynyl; Halogenated Hydrocarbons; Organic Building Blocks and so on.

Physical properties about 5-Chloro-1-pentyne are: (1)ACD/LogP: 1.85; (2)ACD/LogD (pH 5.5): 1.85; (3)ACD/LogD (pH 7.4): 1.85; (4)ACD/BCF (pH 5.5): 14.997; (5)ACD/BCF (pH 7.4): 14.997; (6)ACD/KOC (pH 5.5): 241.769; (7)ACD/KOC (pH 7.4): 241.769 ; (8)#Freely Rotating Bonds: 2; (9)Index of Refraction: 1.438; (10)Molar Refractivity: 27.89 cm³; (11)Molar Volume: 106.219 cm³; (12)Polarizability: 11.057x10^-24cm³; (13)Surface Tension: 29.964 dyne/cm; (14)Enthalpy of Vaporization: 34.14 kJ/mol; (15)Boiling Point: 117.888 °C at 760 mmHg; (16)Vapour Pressure: 20.377 mmHg at 25°C.

Preparation of 5-Chloro-1-pentyne: This chemical can be prepared by ethynylsodium and 1-bromo-3-chloro-propane. This reaction will need reagent liquid ammonia.

Uses of 5-Chloro-1-pentyne: it can be used to produce 27-chloro-hept-3-yn-1-ol with oxirane at temperature of -78 ℃. This reaction will need reagent n-BuLi, BF₃*Et₂O with reaction time of 1 hours. The yield is about 45%.

When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes, respiratory system and skin, it is highly flammable. When you are using it, please do not breathe vapour and avoid contact with skin and eyes, you need also keep away from sources of ignition.

You can still convert the following datas into molecular structure:
(1)SMILES: C#CCCCCl
(2)InChI: InChI=1/C5H7Cl/c1-2-3-4-5-6/h1H,3-5H2
(3)InChIKey: UXFIKVWAAMKFQE-UHFFFAOYAP
(4)Std. InChI: InChI=1S/C5H7Cl/c1-2-3-4-5-6/h1H,3-5H2
(5)Std. InChIKey: UXFIKVWAAMKFQE-UHFFFAOYSA-N