biotin molecule. vitamin b7, found in many multivitamin products skeletal chemical formula. paper packaging for drugs.

biotin vitamin biotine vitamine icon vector carbon oxygen avidin biocytin biotinidase biotinylation carboxylase coenzyme deficiency drug egg hair hypervitaminosis neutravidin nutrient skin supplementation supplement thiophene model skeletal structural formula organic chemistry schematic atomic molecule structure science chemical compound atom molecular paper packaging molecule found multivitamin products formula drugs