Indole-3-acetic acid

Indole-3-acetic acid
Names
	Preferred IUPAC name (1H-Indol-3-yl)acetic acid
	Other names Indole-3-acetic acid,; indolylacetic acid,; 1H-Indole-3-acetic acid,; indoleacetic acid,; heteroauxin,; IAA
Identifiers
CAS Number	87-51-4 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:16411 ;
ChEMBL	ChEMBL82411 ;
ChemSpider	780 ;
DrugBank	DB07950 ;
ECHA InfoCard	100.001.590
EC Number	201-748-2;
Gmelin Reference	143197
KEGG	C00954 ;
PubChem CID	802;
UNII	6U1S09C61L ;
CompTox Dashboard (EPA)	DTXSID5020738 ;
	InChI InChI=1S/C10H9NO2/c12-10(13)5-7-6-11-9-4-2-1-3-8(7)9/h1-4,6,11H,5H2,(H,12,13) Key: SEOVTRFCIGRIMH-UHFFFAOYSA-N ; InChI=1/C10H9NO2/c12-10(13)5-7-6-11-9-4-2-1-3-8(7)9/h1-4,6,11H,5H2,(H,12,13) Key: SEOVTRFCIGRIMH-UHFFFAOYAT;
	SMILES O=C(O)Cc1c[nH]c2ccccc12;
Properties
Chemical formula	C10H9NO2
Molar mass	175.187 g·mol−1
Appearance	White solid
Melting point	168 to 170 °C (334 to 338 °F; 441 to 443 K)
Solubility in water	insoluble in water. Soluble in ethanol to 50mg/mL
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Indole-3-acetic acid (IAA, 3-IAA) is the most common naturally occurring plant hormone of the auxin class. It is the best known of the auxins, and has been the subject of extensive studies by plant physiologists.^[1] IAA is a derivative of indole, containing a carboxymethyl substituent. It is a colorless solid that is soluble in polar organic solvents.

^ Simon, Sibu; Petrášek, Jan (2011). "Why plants need more than one type of auxin". Plant Science. 180 (3): 454–60. Bibcode:2011PlnSc.180..454S. doi:10.1016/j.plantsci.2010.12.007. PMID 21421392.

[simon-1] Simon, Sibu; Petrášek, Jan (2011). "Why plants need more than one type of auxin". Plant Science. 180 (3): 454–60. Bibcode:2011PlnSc.180..454S. doi:10.1016/j.plantsci.2010.12.007. PMID 21421392.

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