azithromycin
CHEBI:2955
·resolve ·ANTIBACTERIAL
·EXACT
SEEDED
A macrolide antibiotic useful for the treatment of bacterial infections. — 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
macrolide antibioticARO:0000000
Strictly broader compounds or drug classes this molecule belongs to.
Chemical structure
Computed structure properties
| Molecular formula | C38H72N2O12 |
|---|
| Charge | 0 |
|---|
| Average mass | 748.996 Da |
|---|
| Monoisotopic mass | 748.50853 Da |
|---|
| Source | ChEBI |
|---|
| InChIKey | MQTOSJVFKKJCRP-BICOPXKESA-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)C)[C@H]2O)[C@](C)(O)C[C@@H](C)CN(C)[C@H](C)[C@@H](O)[C@]1(C)O
InChI
InChI=1S/C38H72N2O12/c1-15-27-38(10,46)31(42)24(6)40(13)19-20(2)17-36(8,45)33(52-35-29(41)26(39(11)12)16-21(3)48-35)22(4)30(23(5)34(44)50-27)51-28-18-37(9,47-14)32(43)25(7)49-28/h20-33,35,41-43,45-46H,15-19H2,1-14H3/t20-,21-,22+,23-,24-,25+,26+,27-,28+,29-,30+,31-,32+,33-,35+,36-,37-,38-/m1/s1
Also called
- Azenil (BRAND_NAME)— chebi
- Azifast (BRAND_NAME)— chebi
- Azigram (BRAND_NAME)— chebi
- Azimakrol (BRAND_NAME)— chebi
- Azitromin (BRAND_NAME)— chebi
- Hemomycin (BRAND_NAME)— chebi
- Zithromax (BRAND_NAME)— chebi
- Zmax (BRAND_NAME)— chebi
- azithromycine (INN)— chebi
- azithromycinum (INN)— chebi
- azitromicina (INN)— chebi
- (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-15-oxo-11-{[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy}-1-oxa-6-azacyclopentadecan-13-yl 2,6-dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranoside (EXACT_SYNONYM)— chebi
- (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)13-((2,6-Dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl)oxy)-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-((3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl)oxy)-1-oxa-6-azacyclopentadecan-15-one (EXACT_SYNONYM)— chebi
- AZM (EXACT_SYNONYM)— aro
Cross-references
Equivalent identifiers for this same structure in other resources.
Activity roles
Every antimicrobial role a source asserts for this compound — the
unreduced evidence behind its antimicrobial_class.
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 |
| ARO |
ARO:3000158 |
azithromycin |
antibioticmech:aro-904736d7d5 |
2026-08-30 |
| CHEBI |
CHEBI:2955 |
azithromycin |
antibioticmech:chebi-8c555420d7 |
2026-08-30 |
Molecular targets
The molecular entity or process this compound acts on. Each target
carries evidence — this is a mechanistic claim, not a classification.
50S ribosomal subunit P-site RIBOSOMAL_SUBUNIT DIRECT_BINDING_TARGET
ARO:3000757
CARD/ARO database assertion; target organism, strain, and assay are not specified. The 50S P-site is asserted as the target site. Evidence status: PRIMARY_EVIDENCE_NEEDED. Source: CARD_ARO 2026-08-30 (retrieved 2026-08-30).
- ARO:3000757 (CARD/ARO asserts targeted_by_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
Resistance mechanisms
54 known routes by which microbes
resist this compound, grounded in ARO where CARD models them. Grouped by mechanism
type — expand a group to see its determinants.
ANTIBIOTIC_TARGET_ALTERATION 32
ANTIBIOTIC_TARGET_ALTERATION
| Determinant | ARO ID | Organism | Gene families | Evidence |
| Chlamydia trachomatis 23S rRNA with mutation conferring resistance to macrolide antibiotics |
ARO:3004174 |
not organism-specific |
— |
- ARO:3004174 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Erm(33) |
ARO:3000599 |
not organism-specific |
— |
- ARO:3000599 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Erm(34) |
ARO:3000600 |
not organism-specific |
— |
- ARO:3000600 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Erm(35) |
ARO:3000604 |
not organism-specific |
— |
- ARO:3000604 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Erm(36) |
ARO:3000605 |
not organism-specific |
— |
- ARO:3000605 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Erm(37) |
ARO:3000392 |
not organism-specific |
— |
- ARO:3000392 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Erm(38) |
ARO:3000601 |
not organism-specific |
— |
- ARO:3000601 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Erm(39) |
ARO:3000602 |
not organism-specific |
— |
- ARO:3000602 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Erm(41) |
ARO:3000603 |
not organism-specific |
— |
- ARO:3000603 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Erm(47) |
ARO:3003908 |
not organism-specific |
— |
- ARO:3003908 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Erm(51) |
ARO:3007033 |
not organism-specific |
— |
- ARO:3007033 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmA |
ARO:3000347 |
not organism-specific |
— |
- ARO:3000347 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmB |
ARO:3000375 |
not organism-specific |
— |
- ARO:3000375 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmC |
ARO:3000250 |
not organism-specific |
— |
- ARO:3000250 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmD |
ARO:3000495 |
not organism-specific |
— |
- ARO:3000495 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmE |
ARO:3000326 |
not organism-specific |
— |
- ARO:3000326 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmF |
ARO:3000498 |
not organism-specific |
— |
- ARO:3000498 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmG |
ARO:3000522 |
not organism-specific |
— |
- ARO:3000522 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmN |
ARO:3000592 |
not organism-specific |
— |
- ARO:3000592 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmQ |
ARO:3000593 |
not organism-specific |
— |
- ARO:3000593 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmR |
ARO:3000594 |
not organism-specific |
— |
- ARO:3000594 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmT |
ARO:3000595 |
not organism-specific |
— |
- ARO:3000595 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmX |
ARO:3000596 |
not organism-specific |
— |
- ARO:3000596 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| ErmY |
ARO:3002825 |
not organism-specific |
— |
- ARO:3002825 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Moraxella catarrhalis 23S rRNA with mutation conferring resistance to macrolide antibiotics |
ARO:3004138 |
not organism-specific |
— |
- ARO:3004138 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Mycobacterium intracellulare 23S rRNA with mutation conferring resistance to azithromycin |
ARO:3004167 |
not organism-specific |
— |
- ARO:3004167 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Mycoplasma genitalium 23S rRNA mutations confers resistance to fluoroquinolone and macrolide antibiotics |
ARO:3004616 |
not organism-specific |
— |
- ARO:3004616 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Mycoplasma hominis 23S rRNA with mutation conferring resistance to macrolide antibiotics |
ARO:3004176 |
not organism-specific |
— |
- ARO:3004176 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Neisseria gonorrhoeae 23S rRNA with mutation conferring resistance to azithromycin |
ARO:3004836 |
not organism-specific |
— |
- ARO:3004836 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Neisseria gonorrhoeae rpld |
ARO:3004956 |
not organism-specific |
— |
- ARO:3004956 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| erm(46) |
ARO:3004596 |
not organism-specific |
— |
- ARO:3004596 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| erm(55) |
ARO:3009647 |
not organism-specific |
— |
- ARO:3009647 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
ANTIBIOTIC_INACTIVATION 11
ANTIBIOTIC_INACTIVATION
| Determinant | ARO ID | Organism | Gene families | Evidence |
| EreB |
ARO:3000363 |
not organism-specific |
— |
- ARO:3000363 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Mrx |
ARO:3003839 |
not organism-specific |
— |
- ARO:3003839 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| mgtA |
ARO:3000462 |
not organism-specific |
— |
- ARO:3000462 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| mphA |
ARO:3000316 |
not organism-specific |
— |
- ARO:3000316 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| mphB |
ARO:3000318 |
not organism-specific |
— |
- ARO:3000318 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| mphC |
ARO:3000319 |
not organism-specific |
— |
- ARO:3000319 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| mphF |
ARO:3003071 |
not organism-specific |
— |
- ARO:3003071 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| mphG |
ARO:3003742 |
not organism-specific |
— |
- ARO:3003742 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| mphH |
ARO:3004539 |
not organism-specific |
— |
- ARO:3004539 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| mphK |
ARO:3004541 |
not organism-specific |
— |
- ARO:3004541 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| mphL |
ARO:3003072 |
not organism-specific |
— |
- ARO:3003072 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
ANTIBIOTIC_EFFLUX 10
ANTIBIOTIC_EFFLUX
| Determinant | ARO ID | Organism | Gene families | Evidence |
| AmrAB-OprM |
ARO:3002981 |
not organism-specific |
— |
- ARO:3002981 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Klebsiella pneumoniae KpnGH-TolC |
ARO:3004598 |
not organism-specific |
— |
- ARO:3004598 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| LpeAB |
ARO:3004098 |
not organism-specific |
— |
- ARO:3004098 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| MexAB-OprM |
ARO:3000386 |
not organism-specific |
— |
- ARO:3000386 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| MtrCDE |
ARO:3000369 |
not organism-specific |
— |
- ARO:3000369 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| Neisseria gonorrhoeae mtrR with mutation conferring resistance |
ARO:3004851 |
not organism-specific |
— |
- ARO:3004851 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| lmrP |
ARO:3003969 |
not organism-specific |
— |
- ARO:3003969 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| mef(B) |
ARO:3003107 |
not organism-specific |
— |
- ARO:3003107 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| mef(F) |
ARO:3007044 |
not organism-specific |
— |
- ARO:3007044 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
| mreA |
ARO:3007050 |
not organism-specific |
— |
- ARO:3007050 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
ANTIBIOTIC_TARGET_PROTECTION 1
ANTIBIOTIC_TARGET_PROTECTION
| Determinant | ARO ID | Organism | Gene families | Evidence |
| msr(G) |
ARO:3007042 |
not organism-specific |
— |
- ARO:3007042 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3000158 (azithromycin); database assertion, not a primary citation.)
|
Curation history
-
SEEDED_FROM_SOURCES
2026-08-30 · seed_from_sources
Seeded from data/raw/ inventories (ARO, 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
-
RESEEDED_FROM_SOURCES
2026-08-31 · 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.