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  ACD/Name ACD/Name
(Chemist Version)
Nomenclature systems IUPAC, CAS, IUBMB IUPAC IUPAC
Languages English, French, German English, French, German English
Name-to-Structure Yes Yes No
Other Language Support Bulgarian, Croatian, Danish, Dutch, Finnish, Greek, Hungarian, Italian, Polish, Portuguese, Romanian, Russian, Slovenian, Spanish, and Swedish No No
Maximum number of atoms per molecule 1024 (excluding H) 1024 (excluding H) 50 (including H)
Elements and metal cations All elements except noble gases All elements except noble gases H, C, N, P, O, S, F, Cl, Br, I, Li, Na, and K
Maximum number of rings per cyclic fragment 15 15 3
Import/export *.sdf files Up to 99 structures No No
Hypertext link to applicable IUPAC Rules and explanations of name derivation Yes No No
Maximum number of characters per name N/A N/A 100 characters