Question: How many hydrogen bond donors does this compound have?
 The Chemical can be represented with the SMILES Nc1nc2[nH]cc(CCc3ccc(C(=O)N[C@@H](CCC(=O)[O-])C(=O)[O-])cc3)c2c(=O)[nH]1.[Na+].[Na+].
Answer: 6
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
Nc1nc2[nH]cc(CCc3ccc(C(=O)N[C@@H](CCC(=O)[O-])C(=O)[O-])cc3)c2c(=O)[nH]1.[Na+].[Na+]
Nc1nc2[nH]cc(CCc3ccc(C(=O)N[C@@H](CCC(=O)[O-])C(=O)[O-])cc3)c2c(=O)[nH]1.[Na+].[Na+]
disodium;(2S)-2-[[4-[2-(2-amino-4-oxo-3,7-dihydropyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl]amino]pentanedioate
How many hydrogen bond donors does this compound have?