4250-90-27,8-Dimethyl-10-formylmethylisoalloxazine7,8-DfmiDTXSID40195287RefChem:105602DTXCID50117778Formylmethylflavine2-(7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl)acetaldehyde6,7-Dimethyl-9-formylmethylisoalloxazine10-(Formylmethyl)-7,8-dimethylisoalloxazine2-(7,8-dimethyl-2,4-dioxobenzo[g]pteridin-10-yl)acetaldehydeRiboflavin Impurity Z