Skip to Content
Merck
CN

Key Documents

View All Documentation

256560

1-Pentyne

99%

Synonym(s):

Propylacetylene

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

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
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

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

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

Flame
GHS02

signalword

Danger

hcodes

H225

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

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.

Search for a COA

Already Own This Product?

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

Visit the Document Library