Used with drugs and chemicals for substances that share the same parent molecule or have similar electronic structure but differ by the addition or substitution of other atoms or molecules. It is used when the specific chemical heading is not available and no appropriate group heading exists.
Entry Version
ANALOGS
Abbreviation
AA
Entry Term(s)
analogs and derivatives
derivatives
Online Note
search policy: Online Manual; use: main heading/AA or AA (SH) or SUBS APPLY AA
History Note
75; used with Category D1-7 & D9-26 1975-89; D2-7, D9, D11 & D14-23 1990 forward
Used with drugs and chemicals for substances that share the same parent molecule or have similar electronic structure but differ by the addition or substitution of other atoms or molecules. It is used when the specific chemical heading is not available and no appropriate group heading exists.
