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About This Item

Linear Formula:
HC≡CCH2CH(OH)CH3
CAS Number:
Molecular Weight:
84.12
Beilstein/REAXYS Number:
1734245
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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Quality Level

assay

≥98%

form

liquid

refractive index

n20/D 1.438 (lit.)

bp

126-127 °C (lit.)

density

0.892 g/mL at 25 °C (lit.)

functional group

hydroxyl

SMILES string

CC(O)CC#C

InChI

1S/C5H8O/c1-3-4-5(2)6/h1,5-6H,4H2,2H3

InChI key

JTHLRRZARWSHBE-UHFFFAOYSA-N

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General description

4-Pentyn-2-ol, a secondary homopropargylic alcohol, is toxic with LC50 value of 160.

Application

4-Pentyn-2-ol was used in the synthesis of new Fischer-type rhenium (III) benzoyldiazenido-2-oxacyclocarbenes. It was also used in the preparation of c-aryl glycosides by undergoing cycloaddition reaction with an aryl nitrile oxide.

pictograms

FlameExclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

98.6 °F - closed cup

flash_point_c

37 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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