On 10/14/10 6:43 AM, Tim Vandermeersch wrote:
> On Wed, Oct 13, 2010 at 8:58 PM, Geoffrey Hutchison
> <ge...@geoffhutchison.net>  wrote:
>>> 3429680: [Li+251] 24639246
>>> 3429701: [ClH+276] 24639289
>>> 3429702: CCCC[n+251]1cccc(C)c1 24639291

I'd be happy if these were just tossed out.  They're obviously not valid, and 
are just junk data.

I've seen this happen with certain buggy applications that treat 8 bytes as an 
unsigned integer, so that -3 becomes +252 or something.  But these just seem to 
be bogus.

In the OpenSMILES spec, the number of digits for charge is specified as 1 (i.e. 
two-digit charge isn't allowed).  But it's also listed as an open question; see 
the last sentence of the section:

   http://opensmiles.org/spec/open-smiles-3-input.html#3.1.3

Craig

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