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CHEBI:16285 - phytanic acid

Default Structure
ChEBI IDCHEBI:16285
ChEBI Namephytanic acid
Stars
DefinitionA branched-chain saturated fatty acid consisting of hexadecanoic acid carrying methyl substituents at positions 3, 7, 11 and 15.
Secondary ChEBI IDsCHEBI:8189, CHEBI:26111
Last Modified21 May 2026
DownloadsMolfile
FormulaC20H40O2
Net Charge0
Average Mass312.538
Monoisotopic Mass312.30283
SMILESCC(C)CCCC(C)CCCC(C)CCCC(C)CC(=O)O
InChIInChI=1S/C20H40O2/c1-16(2)9-6-10-17(3)11-7-12-18(4)13-8-14-19(5)15-20(21)22/h16-19H,6-15H2,1-5H3,(H,21,22)
InChIKeyRLCKHJSFHOZMDR-UHFFFAOYSA-N
Roles Classification
Chemical Role:
Bronsted acid  A molecular entity capable of donating a hydron to an acceptor (Brønsted base).
ChEBI Ontology
Outgoing Relation(s)
phytanic acid (CHEBI:16285) has functional parent hexadecanoic acid (CHEBI:15756)
phytanic acid (CHEBI:16285) has parent hydride phytane (CHEBI:48937)
phytanic acid (CHEBI:16285) is a branched-chain saturated fatty acid (CHEBI:39417)
phytanic acid (CHEBI:16285) is a long-chain fatty acid (CHEBI:15904)
phytanic acid (CHEBI:16285) is a methyl-branched fatty acid (CHEBI:62499)
phytanic acid (CHEBI:16285) is conjugate acid of phytanate (CHEBI:37257)
Incoming Relation(s)
16-oxo phytanic acid (CHEBI:233720) has functional parent phytanic acid (CHEBI:16285)
2-hydroxyphytanic acid (CHEBI:37258) has functional parent phytanic acid (CHEBI:16285)
2-oxophytanic acid (CHEBI:18168) has functional parent phytanic acid (CHEBI:16285)
phytanoyl-CoA (CHEBI:15538) has functional parent phytanic acid (CHEBI:16285)
ω-hydroxyphytanic acid (CHEBI:84925) has functional parent phytanic acid (CHEBI:16285)
16-carboxyphytanoyl-coenzyme A (CHEBI:233723) has parent hydride phytanic acid (CHEBI:16285)
phytanate (CHEBI:37257) is conjugate base of phytanic acid (CHEBI:16285)
IUPAC Name 
3,7,11,15-tetramethylhexadecanoic acid
Synonyms  Source
3,7,11,15-tetramethyl hexadecanoic acidChEBI
3,7,11,15-tetramethyl-hexadecanoic acidLIPID MAPS
3,7,11,15-Tetramethyl-hexadecansäureChEBI
Phytanic acidKEGG COMPOUND
Manual XrefsDatabases
C01607KEGG COMPOUND
LMFA01020251LIPID MAPS
Registry NumbersSources
Reaxys:1789963Reaxys
CAS:14721-66-5ChemIDplus
CAS:14721-66-5KEGG COMPOUND
Citations