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4-Hydroxyalprenolol glucuronide
CAS:70359-54-5
Formula:C21H31NO9

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1,4,7,10,13-Pentaoxacyclohexadecane-15-carboxylic acid,
15-[[(phenylmethoxy)carbonyl]amino]-, methyl ester
CAS:497967-86-9
Formula:C21H31NO9

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oxoprenolol glucuronide
CAS:53564-66-2
Formula:C21H31NO9

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(11aS,14S,15R)-11a-Ethyl-20-methyl-11a,14,15-trihydroxy-15,20-dihydro-12a-oxa-19-nor-11a,12a-dihomosenecionan-11,13,16-trione
CAS:131683-36-8
Formula:C21H31NO9

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(2S,3S,4S,5S,6R)-6-ethoxy-3,4,5-trihydroxy-6-[(propan-2-ylamino)methyl]-5-[2-(prop-2-en-1-yloxy)phenoxy]tetrahydro-2H-pyran-2-carboxylic acid (non-preferred name)
CAS:101977-38-2
Formula:C21H31NO9

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(2S,3S,4S,5S,6R)-6-ethoxy-3,4,5-trihydroxy-6-[(propan-2-ylamino)methyl]-5-[2-(prop-2-en-1-yloxy)phenoxy]tetrahydro-2H-pyran-2-carboxylic acid (non-preferred name)
CAS:101977-39-3
Formula:C21H31NO9

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12-(Acetyloxy)-15,20-dihydro-15,20-dihydroxy-4-methyl-4,8-secosenecionan-8,11,16-trione
CAS:16958-31-9
Formula:C21H31NO9