Product categories
CATO's intermediate catalogue organised into 38 chemical families. Each family page lists representative compounds with CAS numbers, formulas and specification details.
Pyridine Intermediates2031Chlorinated Intermediates1679Brominated Intermediates1517Amines & Diamines1514Fluorinated Intermediates1174Alcohols & Phenols736Pyrimidine Intermediates556Thiophene & Thiazole507Carboxylic Acids502Piperidine Intermediates443Azetidine & Pyrrolidine406Quinoline & Isoquinoline399Ethers389Boronic Acids & Esters375Indole & Azaindole362Pyrazole Intermediates328Imidazole Intermediates310Pyrazine & Pyridazine285Piperazine Intermediates237Furan Intermediates213Aldehydes & Ketones158Cyclopropane & Cyclobutane155Iodinated Intermediates144Triazole & Tetrazole132Nitro Compounds119Amides & Hydrazides113Morpholine & Thiomorpholine113Sulfonyl & Sulfonamides111Nitriles110Organophosphorus Compounds72Organosilicon Compounds58Photoelectric & OLED Materials34Esters18Steroids & Hormone Intermediates3Amino Acids & Derivatives2Carbohydrates & Nucleosides2API & Pharmaceutical Intermediates1Other Intermediates2192