Nordihydroguaiaretic acid

Nordihydroguaiaretic acid

Names
IUPAC name 4,4'-(2,3-Dimethylbutane-1,4-diyl)dibenzene-1,2-diol
Identifiers
CAS Number	500-38-9 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:7625 N
ChEMBL	ChEMBL52 N
ECHA InfoCard	100.007.185
IUPHAR/BPS	4265
MeSH	Nordihydroguaiaretic+acid
PubChem CID	4534
UNII	7BO8G1BYQU Y
CompTox Dashboard (EPA)	DTXSID5022437
SMILES Oc2ccc(CC(C)C(C)Cc1ccc(O)c(O)c1)cc2O
Properties
Chemical formula	C18H22O4
Molar mass	302.370 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Nordihydroguaiaretic acid (NDGA) is a classic lignan, a phenylpropane dimer linked by a bond between positions C8 and C8′, as opposed to a neolignan. It is a natural compound found in the creosote bush (Larrea tridentata).