Molecular Formula: C₂₀H₂₃NO₄

Chemical Name
17-(cyclopropylmethyl)-4,5α-epoxy-3,14-dihydroxymorphinan-6-one
Naltrexone
NTRX
NTX
[3H]-Naltrexone
[Cy5]-Naltrexone

Molecular Formula: C₂₁H₂₅NO₄

Chemical Name
14-O-Methylnaltrexone
17-cyclopropylmethyl-4,5α-epoxy-3-hydroxy-14-methoxymorphinan-6-one
methylnaltrexone

Molecular Formula: C₁₆H₁₇NO₄

Chemical Name
14-hydroxydihydronormorphinone
4,5α-epoxy-3,14-dihydroxy-morphinan-6-one
N-noroxymorphone
naloxone-N-desallyl
Noroxymorphone

Molecular Formula: C₂₁H₂₅NO₄

Chemical Name
17-cyclobutylmethyl-4,5α-epoxy-3,14-dihydroxy-17-methyl-6-oxomorphin
17-cyclobutylmethyl-4,5α-epoxy-3,14-dihydroxymorphinan-6-one
6-ketonalbuphine
N-(CBM)-noroxymorphone
N-(cyclobutylmethyl)-noroxymorphone
nalbuphone

Molecular Formula: C₁₇H₁₉NO₅

Molecular Formula: C₁₈H₁₉NO₄

Chemical Name
(5aR,8aS,11aR,11bS)-2-methoxy-5,5a,9,10-tetrahydro-6,11b-ethano-7H-furo[2',3',4',5':4,5]phenanthro[9,8a-d]oxazol-11(11aH)-
(5aR,8aS,11aR,11bS)-2-methoxy-5,5a,9,10-tetrahydro-6,11b-ethano-7Hfuro[2',3',4',5':4,5]phenanthro[9,8a-d]oxazol-11(11aH)-o

Molecular Formula: C₁₉H₂₁NO₅

Chemical Name
3-acetyl-oxymorphone

Molecular Formula: C₁₉H₁₉NO₅

Chemical Name
(5aR,8aS,11aR,11bS)-2-acetoxy-5,5a,9,10-tetrahydro-6,11b-ethano-7H-furo[2',3',4',5':4,5]phenanthro[9,8a-d]oxazol-11(11aH)-
(5aR,8aS,11aR,11bS)-2-acetoxy-5,5a,9,10-tetrahydro-6,11b-ethano-7Hfuro[2',3',4',5':4,5]phenanthro[9,8a-d]oxazol-11(11aH)-o

Molecular Formula: C₁₉H₂₁NO₆

Chemical Name
3-acetyl-oxymorphone N-oxide
3-acetyloxymorphone N-oxide

Molecular Formula: C₂₀H₂₃NO₆

Chemical Name
3-ethoxycarbonyl-oxymorphone
oxymorphone O-ethylcarbonate

Molecular Formula: C₂₀H₂₁NO₆

Chemical Name
(5aR,8aS,11aR,11bS)-2-[(ethoxycarbonyl)oxy]-5,5a,9,10-tetrahydro-6,11b-ethano-7H-furo[2',3',4',5':4,5]phenanthro[9,8a-d]ox
(5aR,8aS,11aR,11bS)-2-[(ethoxycarbonyl)oxy]-5,5a,9,10-tetrahydro-6,11b-ethano-7H-furo[2,3',4',5':4,5]phenanthro[9,8a-d]oxa

Molecular Formula: C₂₀H₂₃NO₇

Chemical Name
3-ethoxycarbonyl-oxymorphone N-oxide
3-ethoxycarbonyloxymorphone N-oxide

Molecular Formula: C₂₀H₂₂N₂O₇

Chemical Name
3-acetoxy-17-(2-nitroethyl)-noroxymorphone
3-acetoxy-17-(2-nitroethyl)noroxymorphone

Molecular Formula: C₂₁H₂₄BrNO₄

Chemical Name
(5aR,8aS,11aR,11bS)-6-allyl-2-methoxy-11-oxo-5,5a,9,10,11-pentahydro-6,11b-ethano-7H-furo[2',3',4',5':4,5]phenanthro[9,8a-
(5aR,8aS,11aR,11bS)-6-allyl-2-methoxy-11-oxo-5,5a,9,10,11-pentahydro-6,11bethano-7H-furo[2',3',4',5':4,5]phenanthro[9,8a-d

Molecular Formula: C₂₂H₂₄BrNO₅

Chemical Name
(5aR, 8aS,11aR,11bS)-2-acetoxy-6-allyl-11-oxo-5,5a,9,10,11-pentahydro-6,11bethano-7H-furo[2',3',4',5':4,5]phenanthro[9,8a-
(5aR,8aS,11aR,11bS)-2-acetoxy-6-allyl-11-oxo-5,5a,9,10,11-pentahydro-6,11b-ethano-7H-furo[2',3',4',5':4,5]phenanthro[9,8a-

Molecular Formula: C₂₂H₂₆BrNO₄

Chemical Name
(5aR,8aS,11aR,11bS)-6-cyclopropylmethyl-2-methoxy-11-oxo-5,5a,9,10,11-pentahydro-6,11b-ethano-7H-furo[2',3',4',5':4,5]phen

Molecular Formula: C₂₀H₂₂BrNO₄

Chemical Name
(5aR,8aS,11aR,11bS)-6-allyl-2-hydroxy-11-oxo-5,5a,9,10,11-pentahydro-6,11bethano-7H-furo[2',3',4',5':4,5]phenanthro[9,8a-d

Molecular Formula: C₂₃H₂₆BrNO₅

Molecular Formula: C₂₄H₂₈BrNO₅

Molecular Formula: C₂₁H₂₄BrNO₄