<?xml version='1.0' encoding='utf-8'?>
<activity><action_type/><activity_comment/><activity_id>483596</activity_id><activity_properties/><assay_chembl_id>CHEMBL666618</assay_chembl_id><assay_description>Inhibitory activity against Dipeptidylpeptidase IV (DPP IV) in human acute lymphoblastic leukemia MOLT-4 cell line</assay_description><assay_type>B</assay_type><assay_variant_accession/><assay_variant_mutation/><bao_endpoint>BAO_0000190</bao_endpoint><bao_format>BAO_0000219</bao_format><bao_label>cell-based format</bao_label><canonical_smiles>CSc1ccccc1N1C(=O)c2cccc([N+](=O)[O-])c2C1=O</canonical_smiles><data_validity_comment>Outside typical range</data_validity_comment><data_validity_description>Values for this activity type are unusually large/small, so may not be accurate</data_validity_description><document_chembl_id>CHEMBL1131945</document_chembl_id><document_journal>Bioorg Med Chem Lett</document_journal><document_year>1999</document_year><ligand_efficiency/><modality/><molecule_chembl_id>CHEMBL153236</molecule_chembl_id><molecule_pref_name/><parent_molecule_chembl_id>CHEMBL153236</parent_molecule_chembl_id><pchembl_value/><potential_duplicate/><qudt_units>http://www.openphacts.org/units/MicrogramPerMilliliter</qudt_units><record_id>299037</record_id><relation>&gt;</relation><src_id>1</src_id><standard_flag>1</standard_flag><standard_relation>&gt;</standard_relation><standard_text_value/><standard_type>IC50</standard_type><standard_units>ug.mL-1</standard_units><standard_upper_value/><standard_value>100.0</standard_value><target_chembl_id>CHEMBL284</target_chembl_id><target_organism>Homo sapiens</target_organism><target_pref_name>Dipeptidyl peptidase 4</target_pref_name><target_tax_id>9606</target_tax_id><text_value/><toid/><type>IC50</type><units>ug ml-1</units><uo_units>UO_0000274</uo_units><upper_value/><value>100.0</value></activity>