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206504

Sigma-Aldrich

4-Ethynyltoluene

97%

Synonym(s):

1-Ethynyl-4-methylbenzene

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About This Item

Linear Formula:
CH3C6H4C≡CH
CAS Number:
Molecular Weight:
116.16
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

97%

form

liquid

refractive index

n20/D 1.547 (lit.)

bp

168-170 °C (lit.)

density

0.916 g/mL at 25 °C (lit.)

SMILES string

Cc1ccc(cc1)C#C

InChI

1S/C9H8/c1-3-9-6-4-8(2)5-7-9/h1,4-7H,2H3

InChI key

KSZVOXHGCKKOLL-UHFFFAOYSA-N

Application

4-Ethynyltoluene was used in the synthesis of bis(bicyclic) products by the cycloaddition of alkynes to the AlN2C2.

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

120.2 °F - closed cup

flash_point_c

49 °C - closed cup

ppe

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


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Yanxia Zhao et al.
Chemical communications (Cambridge, England), 49(40), 4546-4548 (2013-04-09)
The reaction of dialumane, [L(2-)(THF)Al(II)-Al(II)(THF)L(2-)] (1, L = [(2,6-iPr2C6H3)NC(Me)]2), with the less reactive diphenylacetylene affords a new insertion product [L(2-)(THF)Al(III)(PhC=CPh)(2-)Al(III)(THF)L(2-)] (2). Reaction of 1 with phenylacetylene (or 4-ethynyltoluene), however, proceeds through cycloaddition of alkynes to the AlN2C2 rings to produce
Li-Jing Han et al.
Dalton transactions (Cambridge, England : 2003), 49(24), 8347-8353 (2020-06-11)
A series of dinuclear platinum(ii) alkynyl complexes [Pt2L2(C[triple bond, length as m-dash]CC6H4R-4)4] (R = H 1, CH32, But3) and unusual tetranuclear Pt(ii)-Ag(i) clusters [Pt2Ag2L(C[triple bond, length as m-dash]CC6H4R-4)6] (R = H, 4; CH3, 5; But, 6), together with novel polymer
Jih Ru Hwu et al.
Molecules (Basel, Switzerland), 25(17) (2020-08-28)
The modern world has no available drugs for the treatment of enteroviruses (EV), which affect millions of people worldwide each year. The EV71 is a major causative disease for hand, foot, and mouth disease; sometimes it is associated with severe
Hanfeng Jin et al.
Rapid communications in mass spectrometry : RCM, 34(21), e8899-e8899 (2020-07-18)
Aromatic hydrocarbons play an important role in the formation and growth of polycyclic aromatic hydrocarbon (PAH) and soot particles. Measurements of their absolute photoionization cross-sections (PICSs), that benefit the quantitative investigation of mass spectrometry, are still lacking, however. PICSs of
Amit N Pandya et al.
Tetrahedron letters, 55(50), 6922-6924 (2014-12-17)
An efficient strategy for the synthesis of indolizines from readily available starting materials via oxidative C-H functionalization and

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