ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
C07D HETEROCYCLIC COMPOUNDS (macromolecular compounds C08) 1
C07D0201000000 Heterocyclic compounds having only nitrogen as ring hetero atom 1
C07D0201000000 Preparation, separation, purification, or stabilisation of unsubstituted lactams 1
C07D0201020000 Preparation of lactams 1
C07D0201040000 from or ; via oximes by Beckmann rearrangement 1
C07D0201060000 from ketones by simultaneous oxime formation and rearrangement 1
C07D0201080000 from carboxylic acids or derivatives thereof, e.g. hydroxy carboxylic acids, lactones, nitriles 1
C07D0201100000 from cycloaliphatic compounds by simultaneous nitrosylation and rearrangement 1
C07D0201120000 by depolymerising polyamides 1
C07D0201140000 Preparation of salts or adducts of lactams 1
C07D0201160000 Separation or purification 1
C07D0201180000 Stabilisation 1
C07D0203000000 Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom 1
C07D0203020000 Preparation by ring-closure 1
C07D0203040000 not condensed with other rings 1