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256560

1-Pentyne

Name: 1-Pentyne
Brand: ALDRICH

99%

Synonym(s):

Propylacetylene

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About This Item

Linear Formula:

CH₃CH₂CH₂C≡CH

CAS Number:

627-19-0

Molecular Weight:

68.12

UNSPSC Code:

12352100

NACRES:

NA.22

PubChem Substance ID:

24855537

EC Number:

210-987-1

Beilstein/REAXYS Number:

1697133

MDL number:

MFCD00009469

Assay:

99%

Form:

liquid

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Properties

vapor pressure

6.8 psi ( 20 °C)

Quality Segment

100

assay

99%

form

liquid

refractive index

n20/D 1.385 (lit.)

bp

40 °C (lit.)

mp

−106-−105 °C (lit.)

density

0.691 g/mL at 25 °C (lit.)

SMILES string

CCCC#C

InChI

1S/C5H8/c1-3-5-4-2/h1H,4-5H2,2H3

InChI key

IBXNCJKFFQIKKY-UHFFFAOYSA-N

Description

General description

Selective and non-selective hydrogenation of 1-pentyne catalyzed by silica-supported palladium has been studied by in situ X-ray absorption spectroscopy.

Application

1-Pentyne has been used in preparation of:

lithium acetylides, required for asymmetric synthesis of α,α-dibranched propargyl sulfinamides
7-hydroxy-10-methoxy-3H-naphtho[2.1-b]pyrans

pictograms

GHS02

signalword

Danger

hcodes

H225

pcodes

P210 - P233 - P240 - P241 - P242 - P243

Hazard Classifications

Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

-4.0 °F - closed cup

flash_point_c

-20 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves

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