It doesn't work because it's an invalid SMILES. Should either be
OCC(O)CO or [H]OCC(O[H])CO[H].

I appreciate that an error message would be nice...

- Noel

On 6 February 2012 18:27, Thomas Womack <twom...@globalphasing.com> wrote:
> If I have a file glycerol.smi containing
>
> HOCC(OH)COH
>
> and issue
>
> % obabel glycerol.smi -osmiles -xK
> 0 molecules converted
> % obabel -V
> Open Babel 2.3.1 -- Jan 25 2012 -- 15:40:47
>
> then it doesn't produce an INCHI key.
>
> If I remove the hydrogens from the SMILES string, it does.
>
> I think there should at least be an error message in this case, even if you 
> don't want to support explicit hydrogens on SMILES strings.
>
> Tom
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