Description:Content: Reel 1. Unique CA index name nomenclature; Non-unique CA index name nomenclature; Key-letter-in context (KLIC) index to CA index name nomenclature.--Reel 2. Hetero-atom-in-context (HAIC) index of component elemental ring systems for the 9CI; Keyword-out-of-context (KWOC) inverted index of ring systems for the 9CI.