phytic acid
Also known as {[2,3,4,5,6-pentakis(phosphonooxy)cyclohexyl]oxy}phosphonic acid, phytine, 1D-myo-inositol hexakisphosphate, myo-inositol hexakisphosphate, fytic acid
chemical compound
Chemical data
- Formula
- C6H18O24P6
- Molecular weight
- 660.04 g/mol
- IUPAC name
- (2,3,4,5,6-pentaphosphonooxycyclohexyl) dihydrogen phosphate
- SMILES
- C1(C(C(C(C(C1OP(=O)(O)O)OP(=O)(O)O)OP(=O)(O)O)OP(=O)(O)O)OP(=O)(O)O)OP(=O)(O)O
- InChIKey
- IMQLKJBTEOYOSI-UHFFFAOYSA-N
- XLogP
- -10.3
- Polar surface area
- 401 Ų
- H-bond donors
- 12
- H-bond acceptors
- 24
- Formal charge
- 0
via PubChem
Research
6,035 papersArticle
Phytic acid is a six-fold dihydrogenphosphate ester of inositol (specifically, of the myo isomer), also called inositol hexaphosphate, inositol hexakisphosphate (IP6) or inositol polyphosphate. At physiological pH, the phosphates are partially ionized, resulting in the phytate anion.
The (myo) phytate anion is a colorless species that has significant nutritional role as the principal storage form of phosphorus in many plant tissues, especially bran and seeds. It is also present in many legumes, cereals, and grains. Phytic acid and phytate have a strong binding affinity to the dietary minerals calcium, iron, and zinc, inhibiting their absorption in the small intestine.