Bad image data: Status: 400 Code: PUGREST.BadRequest Message: Unable to standardize the given structure - perhaps some special characters need to be escaped or data packed in a MIME form? Detail: error: Detail: status: 400 Detail: output: Caught ncbi::CException: Standardization failed Detail: Output Log: Detail: Record 1: Warning: Detected illegal valence for element "S": 2 sigma bonds, 1 pi bonds, -1 charge Detail: Record 1: Warning: Compound failed verification during "standardize deposited compound" Detail: Detail: PubChem Warning; class: Invalid Chemical Structure; label: Structure Standardization Issues; message: Detected illegal valence for element "S": 2 sigma bonds, 1 pi bonds, -1 charge Detail: SMILES: C1CCCCCCCC(CCCCCC1)S=O