Q: What is the polar surface area (PSA) value of this compound?
 The Chemical has the SMILES Oc1cccc(-c2c3nc(c(-c4cccc(O)c4)c4ccc([nH]4)c(-c4cccc(O)c4)c4ccc([nH]4)c(-c4cccc(O)c4)c4nc2CC4)C=C3)c1.
Answer: 138.28
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
Oc1cccc(-c2c3nc(c(-c4cccc(O)c4)c4ccc([nH]4)c(-c4cccc(O)c4)c4ccc([nH]4)c(-c4cccc(O)c4)c4nc2CC4)C=C3)c1
Oc1cccc(-c2c3nc(c(-c4cccc(O)c4)c4ccc([nH]4)c(-c4cccc(O)c4)c4ccc([nH]4)c(-c4cccc(O)c4)c4nc2CC4)C=C3)c1
3-[10,15,20-tris(3-hydroxyphenyl)-2,3,23,24-tetrahydroporphyrin-5-yl]phenol
What is the polar surface area (PSA) value of this compound?