Norpseudoephedrine Identifiers CAS 536-43-6 Common Chemistry↗ PubChem CID 68304 InChIKey KNZADIMHVBBPOA-UHFFFAOYSA-N SMILES CCCCOC1=CC=C(C=C1)C(=O)CCN2CCCCC2.Cl InChI InChI=1S/C18H27NO2.ClH/c1-2-3-15-21-17-9-7-16(8-10-17)18(20)11-14-19-12-5-4-6-13-19;/h7-10H,2-6,11-15H2,1H3;1H Tags Source DEA_List_I Similar compounds Closest structural neighbours by Tanimoto similarity over ECFP 2-(4-butoxyphenyl)acetic acid 0.41 CAS 4547-57-3 nitazene precursor BAFA 1-Phenylpentan-1-one 0.39 CAS 1009-14-9 DEA Special Surveillance List 2-(4-butoxyphenyl)acetaldehyde 0.37 CAS 1432494-22-8 nitazene precursor BAFA 2-(4-propoxyphenyl)acetic acid 0.35 CAS 26118-57-0 nitazene precursor BAFA 1-Phenylbutan-1-one 0.34 CAS 495-40-9 DEA Special Surveillance List 2-(4-propoxyphenyl)acetaldehyde 0.31 CAS 1341059-67-3 nitazene precursor BAFA 1-(4-methylphenyl)propan-1-one 0.29 CAS 5337-93-9 cathinone precursor added 2026 category 1 category 1 NI 2-(4-ethoxyphenyl)acetic acid 0.29 CAS 4919-33-9 nitazene precursor BAFA 1-(4-chlorophenyl)propan-1-one 0.28 CAS 6285-05-8 cathinone precursor added 2026 category 1 category 1 NI
1-(4-methylphenyl)propan-1-one 0.29 CAS 5337-93-9 cathinone precursor added 2026 category 1 category 1 NI
1-(4-chlorophenyl)propan-1-one 0.28 CAS 6285-05-8 cathinone precursor added 2026 category 1 category 1 NI