1-methylnaphthalene

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1-methylnaphthalene[1]
IUPAC name 1-Methylnaphthalene
Other names α-methylnaphthalene
Identifiers
CAS number [90-12-0]
PubChem 7002
EINECS number 201-966-8
SMILES CC1=CC=CC2=CC=CC=C12
InChI InChI=1/C11H10/c1-9-5-4-7-10-6-2-3-8-11(9)10/h2-8H,1H3
Properties
Molecular formula C11H10
Molar mass 142.1971
Appearance Liquid
Density 1.001 g/mL
Melting point

−22°C

Boiling point

240-243 °C, 270 K, -165 °F

Vapor pressure 4.91
Hazards
R-phrases R22 R42 R43
S-phrases S7 S36 S37 S39
Flash point 82°C
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

1-Methylnaphthalene is an aromatic hydrocarbon. It has a cetane number of zero, and was previously used as the lower reference for cetane number. However, due to the expense and handling difficulty of 1-Methylnaphthalene, it was replaced in this capacity by isocetane, with a CN of 15[2].

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