Skip to Content
Merck
All Photos(1)

Key Documents

244376

Sigma-Aldrich

5-Chloro-1-pentyne

98%

Synonym(s):

(3-Chloropropyl)acetylene, 1-Chloro-4-pentyne, 4-Pentynyl chloride

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
HC≡CCH2CH2CH2Cl
CAS Number:
Molecular Weight:
102.56
Beilstein:
1736710
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

98%

form

liquid

refractive index

n20/D 1.444 (lit.)

bp

67-69 °C/145 mmHg (lit.)

density

0.968 g/mL at 25 °C (lit.)

functional group

alkyl halide
chloro

storage temp.

2-8°C

SMILES string

ClCCCC#C

InChI

1S/C5H7Cl/c1-2-3-4-5-6/h1H,3-5H2

InChI key

UXFIKVWAAMKFQE-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Application

5-Chloro-1-pentyne was used in the synthesis of 5-chloro-2-trimethylstannyl-1-pentene by reacting with Me3SnCu.Me2S. It was also used with α-diazoesters in a copper-catalyzed synthesis of pyrazoles.

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Flam. Liq. 2 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

59.0 °F - closed cup

Flash Point(C)

15 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Copper-promoted cycloaddition of diazocarbonyl compounds and acetylides.
Xiangbing Qi et al.
Angewandte Chemie (International ed. in English), 46(18), 3242-3244 (2007-03-23)
Piers E, et al.
Canadian Journal of Chemistry, 71(3), 280-286 (1993)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service