4-Methylbenzaldehyde

4-Methylbenzaldehyde is the aromatic aldehyde with the formula CH₃C₆H₄CHO. It is a colorless liquid. Commercially available, it may be prepared from the Friedel-Crafts formylation of toluene with carbon monoxide and hydrogen chloride under Gattermann-Koch conditions:.[1] 4-Methylbenzaldehyde has a cherry-like scent similar to benzaldehyde.

Irritant

4-Methylbenzaldehyde

Names
IUPAC name 4-methylbenzaldehyde
Other names p-Tolualdehyde; p-tolylaldehyde
Identifiers
CAS Number	104-87-0 Y
3D model (JSmol)	Interactive image Interactive image
ChEBI	CHEBI:28617 Y
ChEMBL	ChEMBL190927 Y
ChemSpider	13865424 Y
ECHA InfoCard	100.002.952
KEGG	C06758 Y
PubChem CID	7725
UNII	GAX22QZ28Q Y
CompTox Dashboard (EPA)	DTXSID9041520
InChI InChI=1S/C8H8O/c1-7-2-4-8(6-9)5-3-7/h2-6H,1H3 Y Key: FXLOVSHXALFLKQ-UHFFFAOYSA-N Y InChI=1/C8H8O/c1-7-2-4-8(6-9)5-3-7/h2-6H,1H3 Key: FXLOVSHXALFLKQ-UHFFFAOYAK
SMILES CC1=CC=C(C=C1)C=O O=Cc1ccc(C)cc1
Properties
Chemical formula	C8H8O
Molar mass	120.14852
Appearance	colorless liquid
Density	1.019 g/mL (25 °C)
Melting point	−6.00 °C (21.20 °F; 267.15 K)
Boiling point	204 to 205 °C (399 to 401 °F; 477 to 478 K)
Refractive index (nD)	1.545 (20 °C)
Hazards
Safety data sheet
Related compounds
Related compounds	Benzaldehyde
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references