Hydroxycitronellal

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| ImageFile = 7-Hydroxycitronellal.svg

| ImageSize = 200px

| ImageAlt =

| IUPACName = 7-Hydroxy-3,7-dimethyloctanal

| OtherNames = 7-Hydroxycitronellal

| Section1 = {{Chembox Identifiers

| CASNo = 107-75-5

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

| ChEBI = 53459

| ChEMBL = 3186027

| ChemSpiderID = 7600

| DrugBank = DB14187

| EC_number = 203-518-7

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

| UNII = 8SQ0VA4YUR

| PubChem = 7888

| PubChem1 = 1266924

| PubChem1_Comment = (R)

| PubChem2 = 1715134

| PubChem2_Comment = (S)

| SMILES = CC(CCCC(C)(C)O)CC=O

| InChI=1S/C10H20O2/c1-9(6-8-11)5-4-7-10(2,3)12/h8-9,12H,4-7H2,1-3H3

| InChIKey=WPFVBOQKRVRMJB-UHFFFAOYSA-N

}}

| Section2 = {{Chembox Properties

| C=10|H=20|O=2

| Appearance =

| Density = 0.922 g/cm³

| MeltingPt =

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| Section3 = {{Chembox Hazards

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Hydroxycitronellal (7-hydroxy-3,7-dimethyloctanal) is an odorant used in perfumery.{{cite book|isbn = 9789401096720|page = 183|title = Poucher's Perfumes, Cosmetics and Soaps : Volume 1: The Raw Materials of Perfumery|publisher = Springer Netherlands|last1 = Howard|first1 = G.|last2 = Butler|first2 = H.|last3 = Jouhar|first3 = A.J.|last4 = Poucher|first4 = W.A.|year = 1991|edition = 9|doi = 10.1007/978-94-010-9672-0}} Its molecular formula is C₁₀H₂₀O₂.{{Cite web|title = Octanal, 7-hydroxy-3,7-dimethyl-|url = http://webbook.nist.gov/cgi/cbook.cgi?ID=107-75-5|website = webbook.nist.gov|access-date = 2015-12-30}}{{Cite web|title = Hydroxycitronellal {{!}} C10H20O2 - PubChem|url = https://pubchem.ncbi.nlm.nih.gov/compound/Hydroxycitronellal|website = pubchem.ncbi.nlm.nih.gov|access-date = 2015-12-30}}{{Cite web|title = Compound Report Card|url = https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL3186027|website = www.ebi.ac.uk|access-date = 2015-12-30}}

It derives from a citronellal. 7-Hydroxy-3, 7-dimethyloctanal, also known as 3, 7-dimethyl-7-hydroxyoctan-1-al or 7-hydroxycitronellal, belongs to the class of organic compounds known as medium-chain aldehydes.

It has a sweet floral odor with citrus and melon undertones.{{cite web|url=http://www.thegoodscentscompany.com/data/rw1000972.html|title=Hydroxycitronellal|website=The Good Scents Company}}