Acetaminophen (4 Acetamidophenol, APAP, 4' Hydroxyacetanilide, NSC 3991, NSC 109028, Paracetamol, CAS Number: 103 90 2) Cayman Chemical I've posted this every year for 7 years. PSA please share. The horror stories from Tylenol (Acetaminophen) usage for children are hard to digest literally. The way my mind The Hidden Impact of Acetaminophen Well Rooted Xia & He Publishing Acetaminophen Overdose Reveals PAR4 as a Low Expressing but Potent Receptor on the Hepatic Endothelium in Mice Arteriosclerosis, Thrombosis, and Vascular Biology