IUPAC Naming

IUPAC names1,2,3,4 can be generated for drawn structures in the sketcher. The name is generated in large font above the sketcher as you doodle. Please give it a try and let us know if you encounter any issues. A comparison table for IUPAC naming against two of our competitors is provided below. You can click on any of the images of the molecules to load them into the sketcher for further evaluation.

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IUPAC naming is now in ChemDoodle desktop version 6 with over 20 options!:

  • Control over “Method A” for functional groups
  • Forcing functional groups as substitutents
  • Disabling functional group base nuclei
  • Toggling “per” nomenclature
  • Display of implied locants
  • Locant positioning
  • Disabling trivial names
  • Various trivial naming options
  • Toggling ortho/meta/para
  • Control over the choice of base nucleus
  • Control over the Hantzsch-Widman system
  • Toggling stereochemistry
  • Toggling “bis” nomenclature
  • Text formatting
  • and more…!

ChemDoodle® ChemDraw® MarvinSketch
Bis(2-naphthyl)methane dinaphthalen-2-ylmethane 2-(naphthalen-2-ylmethyl)naphthalene
2(10),3-Pinadiene 6,6-dimethyl-4-methylenebicyclo[3.1.1]hept-2-ene 6,6-dimethyl-4-methylidenebicyclo[3.1.1]hept-2-ene
1,3-Dithia-2,4-dihydronaphthalene 4H-benzo[d][1,3]dithiine 2,4-dihydro-1,3-benzodithiine
3.6.8-Trioxabicyclo[3.2.2]nonane 3,6,8-trioxabicyclo[3.2.2]nonane 3,6,8-trioxabicyclo[3.2.2]nonane
2,3-Xylenol 2,3-dimethylphenol 2,3-dimethylphenol
1-[p-(3-Hydroxypropyl)phenyl]-1,2-ethanediol 1-(4-(3-hydroxypropyl)phenyl)ethane-1,2-diol 1-[4-(3-hydroxypropyl)phenyl]ethane-1,2-diol
Perfluoro(1-methylperhydronaphthalene) 1,1,2,2,3,3,4,4,4a,5,5,6,6,7,7,8,8a-heptadecafluoro-8-(trifluoromethyl)decahydronaphthalene 1,1,2,2,3,3,4,4,4a,5,5,6,6,7,7,8,8a-heptadecafluoro-8-(trifluoromethyl)naphthalene
4-(Isopropylidenehydrazono)-2,5-cyclohexadiene-1-carboxylic acid 4-(propan-2-ylidenehydrazono)cyclohexa-2,5-dienecarboxylic acid 4-[2-(propan-2-ylidene)hydrazin-1-
ylidene]cyclohexa-2,5-diene-1-carboxylic acid
1-Ethylidene-5-(2-naphthyl)carbonohydrazide Unable to name. 3-(ethylideneamino)-1-(naphthalen-2-ylamino)urea
(2S,5R,6R)-3,3-Dimethyl-7-oxo-6-(2-phenoxyacetylamino)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (2S,5R,6R)-3,3-dimethyl-7-oxo-6-(2-phenoxyacetamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (2S,5R,6R)-3,3-dimethyl-7-oxo-6-(2-phenoxyacetamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

  1. Nomenclature of Organic Chemistry: Sections A, B, C, 3rd ed.; Butterworths: London, 1971.
  2. Rigaudy, J.; Klesney, S. P. Nomenclature of Organic Chemistry: Sections A, B, C, D, E, F and H, 4th ed.; Pergamon Press: Oxford, 1979.
  3. Panico, R.; Powell, W. H.; Richer, J. Nomenclature of Organic Chemistry: Recommendatios 1993; Blackwell Scientific Publications: Oxford, 1993.
  4. Preferred names in the nomenclature of organic compounds: Draft 7 October 2004; IUPAC, 2004.

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**Output in the comparison tables were created with ChemDraw version 11.0.1 and MarvinSketch 5.10.0.