Robuta

https://www.cdc.gov/niosh/docs/90-101/
Describes the potential carcinogenicity of toluene diisocyanate and toluenediamine.
toluene diisocyanatecibtoluenediamineevidencecarcinogenicity
https://www.fda.gov/regulatory-information/search-fda-guidance-documents/redbook-2000-ivc7-combined-chronic-toxicitycarcinogenicity-studies-rodents
Toxicological Principles for the Safety Assessment of Food Ingredients - Chapter IV.C.7. Combined Chronic Toxicity/Carcinogenicity Studies with Rodents
chronic toxicityredbookivcombinedcarcinogenicity
https://www.cdc.gov/niosh/docs/91-112/
Describes the potential carcinogenicity of acetaldehyde and malonaldehyde.
cibcarcinogenicityacetaldehydemalonaldehydemutagenicity