Medical Subject Headings

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/MESH/C061752
http://purl.bioontology.org/ontology/MESH/C061752
Preferred Name

EM 523
Synonyms
EM523L
EM-523
N-ethyl-N-demethyl-8,9-anhydroerythromycin A 6,9-hemiketal
de-(N-methyl)-N-ethyl-8,9-anhydroerythromycin A 6,9-hemiacetal
Erythromycin, 8,9-didehydro-9-deoxo-6-deoxy-6,9-epoxy-
Type http://www.w3.org/2002/07/owl#Class

All Properties

altLabel
EM523L
EM-523
N-ethyl-N-demethyl-8,9-anhydroerythromycin A 6,9-hemiketal
de-(N-methyl)-N-ethyl-8,9-anhydroerythromycin A 6,9-hemiacetal
Erythromycin, 8,9-didehydro-9-deoxo-6-deoxy-6,9-epoxy-
prefLabel
EM 523
Scope Statement
structure given in first source
type
isa
PA
D005765
tui
T109
T121
Has mapping qualifier
HM
D004917/Q000031
SC
1
TERMUI
T201151
T201149
T201147
T201148
T201150
TH
FDA SRS (2017)
NLM (1989)
SRC
J Pharmacol Exp Ther 1989;251(2):707
MMR
20170824
notation
C061752
Semantic type UMLS property
cui
C0059048
C0131089
MeSH Frequency
25
DSC
19891219
Inverse of RB
BW08A9O7OH
Mapped to
MDA
19891219
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