inositol nicotinate inositol nicotinate inositol nicotinate, also called inositol hexanicotinate, is marketed in the united states as a "no-flush niacin" dietary supplement. flushing, in physiology, essentially means that epidermal tissues have become reddened, such as when the skin is irritated from the histamine responses related to an allergic reaction, or from recent physical exercise, or even from anger or embarrassment. inositol nicotinateclinical dataahfs/drugs.cominternational drug namesroutes ofadministrationoralatc codec04ac03 (who) legal statuslegal status us: otc identifiers iupac name cyclohexane-1,2,3,4,5,6-hexayl hexanicotinate cas number6556-11-2pubchem cid3720chemspider16736141uniia99mk953kzkeggd01813comptox dashboard (epa)dtxsid2023147 echa infocard100.026.806 chemical and physical dataformulac42h30n6o12molar mass810.732 g·mol−13d model (jsmol)interactive imagemelting point255 °c (491 °f) smiles o=c(o6(oc(=o)c1cccnc1)(oc(=o)c2cccnc2)(oc(=o)c3cccnc3)(oc(=o)c4cccnc4)6oc(=o)c5cccnc5)c7cccnc7 this form of niacin is supposed to reduce or prevent flushing by being broken down into the metabolites niacin (nicotinic acid) and inositol at a slow rate.