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Docosapentaenoic acid

File:Docosapentaenoic-acid-3D-balls.png File:Docosapentaenoic-acid-3D-sf.png
Names
IUPAC names (4Z,7Z,10Z,13Z,16Z)-docosa-4,7,10,13,16-pentaenoic acid, OR (4Z,7Z,10Z,13Z,19Z)-docosa-4,7,10,13,19-pentaenoic acid, OR (4Z,7Z,10Z,16Z,19Z)-docosa-4,7,10,16,19-pentaenoic acid, OR (4Z,7Z,13Z,16Z,19Z)-docosa-4,7,13,16,19-pentaenoic acid, OR (4Z,10Z,13Z,16Z,19Z)-docosa-4,10,13,16,19-pentaenoic acid, OR (7Z,10Z,13Z,16Z,19Z)-docosa-7,10,13,16,19-pentaenoic acid
Other names ? DPA  ?(INN)
Identifiers
CAS Number	6217-54-5 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:28125 Y
ChEMBL	ChEMBL367149 Y
ChemSpider	393183 Y
IUPHAR/BPS	1051
PubChem CID	445580
UNII	ZAD9OKH9JC Y
InChI InChI=1S/C22H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24/h3-4,6-7,9-10,12-13,15-16,18-19H,2,5,8,11,14,17,20-21H2,1H3,(H,23,24)/b4-3-,7-6-,10-9-,13-12-,16-15-,19-18- Y Key: MBMBGCFOFBJSGT-KUBAVDMBSA-N Y InChI=1/C22H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24/h3-4,6-7,9-10,12-13,15-16,18-19H,2,5,8,11,14,17,20-21H2,1H3,(H,23,24)/b4-3-,7-6-,10-9-,13-12-,16-15-,19-18- Key: MBMBGCFOFBJSGT-KUBAVDMBBZ
SMILES O=C(O)CC\C=C/C/C=C\C\C=C/C\C=C/C\C=C/C\C=C/CC
Properties
Chemical formula	C22H34O2
Molar mass	?328.488 g/mol
Density	?0.943 g/cm3
Melting point
Boiling point
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Tracking categories (test):

• SizeSet
• PairSizeSet

Docosapentaenoic acid (DPA) designates any straight chain 22:5 fatty acid, that is a straight chain open chain type of polyunsaturated fatty acid (PUFA) which contains 22 carbons and 5 double bonds. DPA is primarily used to designate two isomers, all-cis-4,7,10,13,16-docosapentaenoic acid (i.e. 4Z,7Z,10Z,13Z,16Z-docosapentaenoic acid) and all-cis-7,10,13,16,19-docosapentaenoic acid (i.e. 7Z,10Z,13Z,16Z,19Z-docosapentaenoic acid). They are also commonly termed n-6 DPA and n-3 DPA, respectively; these designations describes the position of the double bond being 6 or 3 carbons closest to the (omega) carbon at the methyl end of the molecule and is based on the biologically important difference that n-6 and n-3 PUFA are separate PUFA classes, i.e. the omega-6 fatty acids and omega-3 fatty acids, respectively. Mammals, including humans, can not interconvert these two classes and therefore must obtain dietary essential PUFA fatty acids from both classes in order to maintain normal health (see essential fatty acids).

DPA's structure is a carboxylic acid (-oic acid) with a 22-carbon chain (docosa- derives from the Ancient Greek for 22) and five (penta-) cis double bonds (-en-); with the first double bond located at the third carbon from the omega end.