morphine methylbromide morphine methylbromide morphine methylbromide (morphine methobromide, morphine bromomethylate, morphosan) a derivative of morphine. it is an opioid listed as a schedule i narcotic with an acscn of 9305 and a 2014 aggregate national production quota of 5 grams. it is a quaternary ammonium salt formed by reaction of morphine with methyl bromide and a controlled substance. morphine methylbromideclinical dataother namesmorphine bromomethylate; morphine methobromide; morphosanlegal statuslegal status uk: class a us: schedule i identifiers iupac name (5α,6α)-3,6-dihydroxy-17,17-dimethyl-7,8-didehydro-4,5-epoxymorphinan-17-ium bromide cas number125-23-5pubchem cid5362445chemspider4515037unii1a51p5nggucomptox dashboard (epa)dtxsid90924983 chemical and physical dataformulac18h22brno3molar mass380.282 g·mol−13d model (jsmol)interactive image smiles 1((o)c=c2)(2()3c4)(cc3(c)c)c5=c4c=cc(o)=c5o1. inchi inchi=1s/c18h21no3.brh/c1-19(2)8-7-18-11-4-6-14(21)17(18)22-16-13(20)5-3-10(15(16)18)9-12(11)19;/h3-6,11-12,14,17,21h,7-9h2,1-2h3;1h/t11-,12+,14-,17-,18-;/m0./s1key:kquqzjsqmshwhp-sclazzchsa-n