The function MolInfo(String infotype) gets a molecule property. Specifically MolInfo('IsChiral') returns 1 if it is chiral and 0 if it is not. I assumed this means that the function determines if a molecule is chiral and optically active.

However, the function did not give the expected return for meso compounds (2 chiral centers with a symmetry plane such as 2S3R tartaric acid). For the meso compounds the function returns the value "1" or "true". Based on that the function appears not to provide info if the molecule is optically active, but only if it contains chiral centers. Can you please confirm that my understanding is correct.