coenzyme a, coa, shcoa, coash molecule. molecular model. 3d rendering

endomorphin1 em1 endomorphin molecule opioid peptide pain modulator biochemistry neurotransmitter protein endogenous painkiller analgesia bond hydrogen carbon oxygen organic chemistry structural formula chemical atomic molecular structure atom compound design ball rendering render coenzyme coa shcoa coash molecule model endomorphin-1 em-1 modulation