6-Nonenal

6-Nonenal
	cis-6-Nonenal
	trans-6-Nonenal
Names
	IUPAC names (Z)-Non-6-enal; (E)-Non-6-enal
	Other names 6-Nonenal
Identifiers
CAS Number	6728-35-4 ; 2277-20-5 (E) ; 2277-19-2 (Z) ;
3D model (JSmol)	Interactive image; (E): Interactive image; (Z): Interactive image;
ChemSpider	15903; 4446459 (E); 4515200 (Z);
PubChem CID	16778; 5283338 (E); 5362720 (Z);
CompTox Dashboard (EPA)	DTXSID60859713 ;
	InChI InChI=1/C9H16O/c1-2-3-4-5-6-7-8-9-10/h3-4,9H,2,5-8H2,1H3 Key: RTNPCOBSXBGDMO-UHFFFAOYAV; (E): InChI=1/C9H16O/c1-2-3-4-5-6-7-8-9-10/h3-4,9H,2,5-8H2,1H3/b4-3+ Key: RTNPCOBSXBGDMO-ONEGZZNKBC; (Z): InChI=1/C9H16O/c1-2-3-4-5-6-7-8-9-10/h3-4,9H,2,5-8H2,1H3/b4-3- Key: RTNPCOBSXBGDMO-ARJAWSKDBN;
	SMILES O=CCCCCC=CCC; (E): O=CCCCC/C=C/CC; (Z): O=CCCCC/C=C\CC;
Properties
Chemical formula	C9H16O
Molar mass	140.226 g·mol−1
Appearance	Colorless liquid
Density	0.841 g/cm3
Boiling point	62 to 63 °C (144 to 145 °F; 335 to 336 K) at 2 mmHg
Solubility in water	0.63 g/L
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Irritant
Flash point	113 °C (235 °F; 386 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

6-Nonenal is an organic compound with the formula C₂H₅CH=CH(CH₂)₄CHO. Other isomeric nonenal compounds are also known to exist naturally, e.g. 2-nonenal. The cis-isomer of 6-nonenal is often listed as the principal component in the aromas of muskmelon fruits. The trans-isomer is listed as an off-flavor aroma of milk foams, and thought to be a possible polypropylene odorant.