1-Methylnaphthalene

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1-Methylnaphthalene^[1]


IUPAC name 1-Methylnaphthalene
Other names α-methylnaphthalene
Identifiers
CAS number	90-12-0^Y
PubChem	7002
ChemSpider	6736^Y
EC number	201-966-8
KEGG	C14082^Y
ChEBI	CHEBI:50717^Y
ChEMBL	CHEMBL383808^Y
Jmol-3D images	Image 1
SMILES c1cccc2cccc(c12)C
InChI InChI=1S/C11H10/c1-9-5-4-7-10-6-2-3-8-11(9)10/h2-8H,1H3^Y Key: QPUYECUOLPXSFR-UHFFFAOYSA-N^Y InChI=1/C11H10/c1-9-5-4-7-10-6-2-3-8-11(9)10/h2-8H,1H3 Key: QPUYECUOLPXSFR-UHFFFAOYAD
Properties
Molecular formula	C₁₁H₁₀
Molar mass	142.20 g/mol
Appearance	Liquid
Density	1.001 g/mL
Melting point	−22 °C; −8 °F; 251 K
Boiling point	240–243 °C (464–469 °F; 513–516 K)
Vapor pressure	4.91
Hazards
R-phrases	R22 R42 R43
S-phrases	S7 S36 S37 S39
Flash point	82 °C; 180 °F; 355 K
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox 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]

References

External links

PubChem Entry for 1-methylnaphthalene

v t e Polycyclic aromatic hydrocarbons

2 rings	Azulene Naphthalene 1-Methylnaphthalene Sapotalin

3 rings	Acenaphthene Acenaphthylene Anthracene Fluorene Phenalene Phenanthrene

4 rings	Benz[a]anthracene Benzo[a]fluorene Benzo[c]phenanthrene Chrysene Fluoranthene Pyrene Tetracene Triphenylene Tricyclobutabenzene

5 rings	Benzopyrene Benzo[a]pyrene Benzo[e]pyrene Benzo[a]fluoranthene Benzo[b]fluoranthene Benzo[j]fluoranthene Benzo[k]fluoranthene Dibenz[a,h]anthracene Dibenz[a,j]anthracene Olympicene Pentacene Perylene Picene Tetraphenylene

6+ rings	Anthanthrene Benzo[ghi]perylene Circulene Corannulene Coronene Dicoronylene Diindenoperylene Helicene Heptacene Hexacene Kekulene Ovalene Zethrene

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