| IPAD-DB ID | C01263 | 
| Name | Protocatechuic acid | 
| Category | Natural compounds | 
| 2D Structure | 
                             | 
                    
| 3D Structure | |
| Molecular Formula | C 7 H 6 O 4 | 
| Molecular Weight | 154.12g/mol | 
| IUPAC Name | 3, 4-dihydroxybenzoic acid | 
| InChI | InChI=1S/C7H6O4/c8-5-2-1-4(7(10)11)3-6(5)9/h1-3, 8-9H, (H, 10, 11) | 
| InChIKey | YQUVCSBJEUQKSH-UHFFFAOYSA-N | 
| Canonical SMILES | C1=CC(=C(C=C1C(=O)O)O)O | 
| PubChem CID | 72 | 
| DrugBank Accession Number | - | 
| CAS Registry Number | 99-50-3 | 
| Molecular Weight(Computed by SwissADME) | 154.12 | 
| Hac(Computed by SwissADME) | 11 | 
| Volume(Computed by ADMETlab 2.0) | 145.687 | 
| Density(Computed by ADMETlab 2.0) | 1.057 | 
| nRing(Computed by ADMETlab 2.0) | 1 | 
| MaxRing(Computed by ADMETlab 2.0) | 6 | 
| nHet(Computed by ADMETlab 2.0) | 4 | 
| fChar(Computed by ADMETlab 2.0) | 0 | 
| nRig(Computed by ADMETlab 2.0) | 7 | 
| Flexibility(Computed by ADMETlab 2.0) | 0.143 | 
| Stero Centers(Computed by ADMETlab 2.0) | 0 | 
| LogS(Computed by ADMETlab 2.0) | -1.396 | 
| LogD(Computed by ADMETlab 2.0) | 1.003 | 
| logP(Computed by ADMETlab 2.0) | 0.8 | 
| TPSA(Computed by SwissADME) | 77.76 Ų | 
| Hbond Acceptor(Computed by SwissADME) | 4 | 
| Hbond Donor(Computed by SwissADME) | 3 | 
| Rotatable Bonds(Computed by SwissADME) | 1 | 
| GI Absorption(Computed by SwissADME) | High | 
| BBB(blood-brain barrier) Permeant(Computed by SwissADME) | Yes | 
| P-gp Substrate(Computed by SwissADME) | No | 
| CYP1A2 Inhibitor(Computed by SwissADME) | No | 
| CYP2C19 Inhibitor(Computed by SwissADME) | No | 
| CYP2C9 Inhibitor(Computed by SwissADME) | No | 
| CYP2D6 Inhibitor(Computed by SwissADME) | No | 
| CYP3A4 Inhibitor(Computed by SwissADME) | No | 
| log Kp(Skin Permeation)(Computed by SwissADME) | -6.84 cm/s | 
| Lipinski(Computed by SwissADME) | Yes, 0 violation | 
| Ghose(Computed by SwissADME) | No, 3 violations: MW<160, MR<40, #atoms<20 | 
| Veber(Computed by SwissADME) | Yes | 
| Egan(Computed by SwissADME) | Yes | 
| Muegge(Computed by SwissADME) | No, 1 violation: MW<200 | 
| Bioavailability Score(Computed by SwissADME) | 0.56 |