2-Nonenal

{{chembox

| Watchedfields = changed

| verifiedrevid = 477215034

| ImageFile = 2-Nonenal.png

| ImageSize = 240

| ImageAlt = Skeletal formula of 2-nonenal

| ImageFile1 = 2-Nonenal-3D-balls.png

| ImageSize1 = 230

| ImageAlt1 = Ball-and-stick model of the 2-nonenal molecule

| PIN = Non-2-enal

| OtherNames =

|Section1={{Chembox Identifiers

| CASNo_Ref = {{cascite|correct|CAS}}

| CASNo = 18829-56-6

| CASNo_Comment = (trans)

| CASNo1_Ref = {{cascite|correct|??}}

| CASNo1 = 60784-31-8

| CASNo1_Comment = (cis)

| CASNo2_Ref = {{cascite|correct|??}}

| CASNo2 = 2463-53-8

| CASNo2_Comment = (cis/trans mixture)

| ChEBI = 142592

| PubChem = 5283335

| ChEMBL_Ref = {{ebicite|correct|EBI}}

| ChEMBL = 450072

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| ChemSpiderID = 4446456

| EC_number = 242-609-6

| EC_number_Comment = (trans)

| EC_number2 = 219-562-5

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 8VEO649985

| UNII_Comment = (trans)

| UNII1_Ref = {{fdacite|correct|FDA}}

| UNII1 = ARM1W3309Z

| UNII1_Comment = (cis)

| UNII2_Ref = {{fdacite|correct|FDA}}

| UNII2 = 93C6BZW2TV

| UNII2_Comment = (cis/trans mixture)

| InChI = 1/C9H16O/c1-2-3-4-5-6-7-8-9-10/h7-9H,2-6H2,1H3/b8-7+

| InChIKey = BSAIUMLZVGUGKX-BQYQJAHWBS

| StdInChI_Ref = {{stdinchicite|correct|chemspider}}

| StdInChI = 1S/C9H16O/c1-2-3-4-5-6-7-8-9-10/h7-9H,2-6H2,1H3/b8-7+

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

| StdInChIKey = BSAIUMLZVGUGKX-BQYQJAHWSA-N

| SMILES = O=C/C=C/CCCCCC

}}

|Section2={{Chembox Properties

| C=9 | H=16 | O=1

| Appearance = Colorless liquid

| Density =

| MeltingPt =

| BoilingPtC = 188.00 to 190.00

| BoilingPt_notes = at 760.00 mmHg

| Solubility =

}}

|Section3={{Chembox Hazards

| ExternalSDS = [https://fscimage.fishersci.com/msds/31390.htm External MSDS]

| NFPA-H = 1 | NFPA-F = 2 | NFPA-R = 0

| FlashPtC = 79

| Hazards_ref={{cite web |title=2-Nonenal |url=https://pubchem.ncbi.nlm.nih.gov/compound/5283335#section=Safety-and-Hazards |website=pubchem.ncbi.nlm.nih.gov |language=en}}

| GHSPictograms = {{GHS07}}

| GHSSignalWord = Warning

| HPhrases = {{H-phrases|315}}

| PPhrases = {{P-phrases|264|280|302+352|321|332+313|362}}

| AutoignitionPtC =

}}

}}

2-Nonenal is an unsaturated aldehyde. The colorless liquid is an important aroma component of aged beer{{cite journal | last1 = Santos |first1 = J. R. | last2 = Carneiro | first2 = J. R. | last3 = Guido | first3 = L. F. | last4 = Almeida | first4 = P. J. | last5 = Rodrigues | first5 = J. A. | last6 = Barros | first6 = A. A. | title = Determination of E-2-nonenal by high-performance liquid chromatography with UV detection - Assay for the evaluation of beer ageing | journal = Journal of Chromatography A | year = 2008 | volume = 985 | issue = 1–2 | pages = 395–402 | doi = 10.1016/S0021-9673(02)01396-1 |pmid = 12580508 }} and buckwheat, and is insoluble in water.{{cite journal |author1=Janeš, D. |author2=Kantar, D. |author3=Kreft, S. |author4=Prosen, H. | title = Identification of buckwheat (Fagopyrum esculentum Moench) aroma compounds with GC-MS | journal = Food Chemistry | year = 2008 | volume = 112 | issue = 1 | pages = 120–4 | doi = 10.1016/j.foodchem.2008.05.048 }}