Folic acid

InChI key

OVBPIULPVIDEAO-LBPRGKRZSA-N

InChI

1S/C19H19N7O6/c20-19-25-15-14(17(30)26-19)23-11(8-22-15)7-21-10-3-1-9(2-4-10)16(29)24-12(18(31)32)5-6-13(27)28/h1-4,8,12,21H,5-7H2,(H,24,29)(H,27,28)(H,31,32)(H3,20,22,25,26,30)/t12-/m0/s1

SMILES string

NC(N1)=NC(C2=C1N=CC(CNC3=CC=C(C(N[C@@H](CCC(O)=O)C(O)=O)=O)C=C3)=N2)=O

assay

≥97.0% (HPLC)

optical activity

[α]20/D +20±2°, c = 1% in 0.1 M NaOH

impurities

~8% water

ign. residue

≤0.1% (as SO₄)

cation traces

Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤1500 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

storage temp.

2-8°C