Roles are powerful CAS indexing terms that allow you to find precise information associated with substances.
You can use the super roles (bold) and roles (indented) below to refine Substance and Reference search results. (1)
See Advanced Role Descriptions for more information.
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ANST Analytical Study ANT Analyte AMX Analytical Matrix ARG Analytical Reagent Use ARU Analytical Role, Unclassified BIOL Biological Study ADV Adverse Effect, Including Toxicity AGR Agricultural Use BAC Biological Activity or Effector, Except Adverse (2) BCP Biochemical Process (3) BMF Bioindustrial Manufacture BPN Biosynthetic Preparation BSU Biological Study, Unclassified BUU Biological Use, Unclassified COS Cosmetic Use (3) DGN Diagnostic Use (3) FFD Food or Feed Use NPO Natural Product Occurrence (3) PAC Pharmacological Activity (3) PKT Pharmacokinetics (3) THU Therapeutic Use CMBI Combinatorial Study (3) FORM Formation, Nonpreparative FMU Formation, Unclassified GFM Geological or Astronomical Formation NANO Nanomaterial (4) OCCU Occurrence GOC Geological or Astronomical Occurrence NPO Natural Product Occurrence (3) OCU Occurrence, Unclassified POL Pollutant |
PREP Preparation (5) BMF Bioindustrial Manufacture BPN Biosynthetic Preparation BYP Byproduct IMF Industrial Manufacture PUR Purification or Recovery SPN Synthetic Preparation PROC Process BCP Biochemical Process (3) GPR Geological or Astronomical Process PEP Physical, Engineering, or Chemical Process REM Removal or Disposal PRPH Prophetic Substance (7) RACT Reactant or Reagent (3,6) RCT Reactant (6) RGT Reagent (3) USES Uses AGR Agricultural Use ARG Analytical Reagent Use BUU Biological Use, Unclassified CAT Catalyst Use COS Cosmetic Use (3) DGN Diagnostic Use (3) FFD Food or Feed Use MOA Modifier or Additive Use NUU Other Use, Unclassified (8) POF Polymer in Formulation TEM Technical or Engineered Material Use THU Therapeutic Use Specific roles that are not associated with any super roles: MSC Miscellaneous PRP Properties |
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(1) Super roles have 4-letter codes. Specific roles have 3-letter codes. Under each super role are listed the specific roles that are retrieved when you filter with that super role. (2) Used from CA Vol. 66 (1967) to Vol. 135 (2001). (3) Used starting with CA Vol. 136 (2002). (4) Used starting with CA Vol. 116 (1992). (5) The PREP super role has been added to records back to 1907. (6) Filtering with the RCT role retrieves substances/references from CA Vol. 66 (1967) to the present. Filtering with the RACT super role includes substances/references with RCT or RGT references starting with CA Vol. 136 (2002). (7) Used starting with records from 2003 to the present. (8) Starting in 2002, the NUU role changed from NONBIOLOGICAL USE, UNCLASSIFIED/RL to OTHER USE, UNCLASSIFIED/RL. Note: The roles CPN, CPS, CRG, CRT, CST, CUS, DEV, DMA, EPR, MFM, and PYP are no longer in use, but have been mapped to current roles. The roles BOC, BPR, and PNU have been eliminated, but have been replaced by broader roles when appropriate. Important: A role selected in one type of result set will not carry over to a crossover result set. |
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