erythromycin-[N-methyl-14C]

CHEBI:145339 ·resolve ·ANTIMICROBIAL_UNSPECIFIED ·EXACT SEEDED

A 14C-modified compound that is erythromycin A in which one of the methyl groups of the dimethylnitrilo group has a 14C label. It is used in a breath test to detect liver cytochrome P450 enzyme (CYP3A4) activity in humans. — ChEBI

Machine-generated and unreviewed. Identity, structure and cross-references come straight from ChEBI's and CARD's own data; no curator has signed off on this record yet.

Classification

Strictly broader compounds or drug classes this molecule belongs to.

Label unavailable CHEBI:139542
Label unavailable CHEBI:3992
erythromycin CHEBI:48923

Chemical structure

Computed structure properties
Molecular formula	C36[14C]H67NO13
Charge	0
Average mass	735.929 Da
Monoisotopic mass	735.46448 Da
Source	ChEBI
InChIKey	ULGZDMOVFRHVEP-RFAHSBMDSA-N

SMILES

CC[C@H]1OC(=O)[C@H](C)[C@@H](O[C@H]2C[C@@](C)(OC)[C@@H](O)[C@H](C)O2)[C@H](C)[C@@H](O[C@@H]2O[C@H](C)C[C@H](N(C)[14CH3])[C@H]2O)[C@](C)(O)C[C@@H](C)C(=O)[C@H](C)[C@@H](O)[C@]1(C)O

InChI

InChI=1S/C37H67NO13/c1-14-25-37(10,45)30(41)20(4)27(39)18(2)16-35(8,44)32(51-34-28(40)24(38(11)12)15-19(3)47-34)21(5)29(22(6)33(43)49-25)50-26-17-36(9,46-13)31(42)23(7)48-26/h18-26,28-32,34,40-42,44-45H,14-17H2,1-13H3/t18-,19-,20+,21+,22-,23+,24+,25-,26+,28-,29+,30-,31+,32-,34+,35-,36-,37-/m1/s1/i11+2

Also called

(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-14-ethyl-7,12,13-trihydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-6-[(2S,3R,4S,6R)-3-hydroxy-6-methyl-4-[methyl((114C)methyl)amino]oxan-2-yl]oxy-3,5,7,9,11,13-hexamethyl-oxacyclotetradecane-2,10-dione (EXACT_SYNONYM)— chebi
14C-N-methyl-erythromycin (EXACT_SYNONYM)— chebi
[14C-N-methyl]-erythromycin (EXACT_SYNONYM)— chebi
[N-methyl-14C]-erythromycin (EXACT_SYNONYM)— chebi
[N-methyl-14C]erythromycin (EXACT_SYNONYM)— chebi
erythromycin N-methyl C-14 (EXACT_SYNONYM)— chebi

Cross-references

Identifiers for this same structure in other resources. An accession that lands on two different structures in this corpus is withheld from both rather than shown here, since it names at most one of them.

cas:92530-59-1

Activity roles

Every antimicrobial role a source asserts for this compound — the unreduced evidence behind its antimicrobial_class.

antimicrobial agent CHEBI:33281

Source concepts

Every upstream concept that resolved to this record. The merge is the product: this is what shows ChEBI and CARD are describing the same structure.

Upstream concepts merged into this record
Source	Native ID	Label	Minted CURIE	Version
CHEBI	`CHEBI:145339`	erythromycin-[N-methyl-14C]	`antibioticmech:chebi-b5a6a21d52`	2026-08-30

Curation history

SEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Seeded from data/raw/ inventories (CHEBI)
RESEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Re-seeded from updated data/raw/ inventories
RESEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Re-seeded from updated data/raw/ inventories

Provenance

Seeded by scripts/seed_from_sources.py from the committed inventories in data/raw/. View the record (YAML).

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