C38H69NO13
748 g/mol
APIWarning
Clarithromycin
CAS81103-11-9EC617-200-4
Category
API
Compound Class
Natural Product
Primary Use
Pharmaceutical Raw Material
Clarithromycin is an antibiotic active pharmaceutical ingredient (API) used in the manufacture of medications for treating bacterial infections. It is a macrolide antibiotic compound produced by chemical synthesis, employed as a raw material in pharmaceutical formulations.
pharmaceutical manufacturingantibiotic ingredientanti-infective API
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 81103-11-9
Related Compounds
StrongSame Parent
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StrongStructure SimilarSimilarity 0.91
Clarithromycin EP impurity P
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pharmaceutical intermediate
StrongStructure SimilarSimilarity 0.88
PUBCHEM_71315393
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pharmaceutical intermediate
StrongStructure SimilarSimilarity 0.86
Clarithromycin oxime
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pharmaceutical intermediate
StrongStructure SimilarSimilarity 0.85
PUBCHEM_71314812
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pharmaceutical research compound
ReferenceSame Category
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pharmaceutical raw material
ReferenceSame Category
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ReferenceSame Category
Pravastatin sodium
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pharmaceutical raw material
Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H373May cause damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H361Suspected of damaging fertility or the unborn child
H362May cause harm to breast-fed children
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H410Very toxic to aquatic life with long lasting effects
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for Clarithromycin (CAS 81103-11-9) is 2941.50.
HS code (international, 6-digit)
2941.50
EU CN code (8-digit)
2941 50 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-6-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-14-ethyl-12,13-dihydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-7-methoxy-3,5,7,9,11,13-hexamethyl-oxacyclotetradecane-2,10-dione
InChIKey
AGOYDEPGAOXOCK-KCBOHYOISA-N
SMILES
CC[C@@H]1[C@@]([C@@H]([C@H](C(=O)[C@@H](C[C@@]([C@@H]([C@H]([C@@H]([C@H](C(=O)O1)C)O[C@H]2C[C@@]([C@H]([C@@H](O2)C)O)(C)OC)C)O[C@H]3[C@@H]([C@H](C[C@H](O3)C)N(C)C)O)(C)OC)C)C)O)(C)O
Synonyms (106)
- CTY
- Clarithromycin (JP18/USP/INN)
- Clarithromycin - EP
- Clarithromycin Identity, United States Pharmacopeia (USP)
- Clarithromycin for peak identification, European Pharmacopoeia (EP)
- Clarithromycin, European Pharmacopoeia (EP)
- Clarithromycin, United States Pharmacopeia (USP)
- Clarithromycine [INN-French]
- Clarithromycinum [INN-Latin]
- Claritromicina [INN-Spanish]
- 6-0-methylerythromycin A
- 6-O-Methylerythromycin
- 6-O-Methylerythromycin a
- Abbotic
- Adel
- Astromen
- Biaxin
- Biaxin (TN)
- Biaxin HP
- Biaxin XL
- Biaxin Xl Pac
- Biaxin filmtab
- Biaxin xl filmtab
- Bicrolid
- CLARITHROMYCIN [MART.]
- CLM & IL-12
- Clacee
- Clacid
- Clacine
- Clambiotic
- Clarem
- Claribid
- Claricide
- Claridar
- Clarie xl
- Claripen
- Clarith
- Clarithromycin 500 mg
- Clarithromycin CRS
- Clarithromycin identity
- Clarithromycin, >=95% (HPLC)
- Clarithromycin, >=98% (HPLC)
- Clarithromycine
- Clarithromycinum
- Claritromicina
- Clarosip
- Clathromycin
- Crixan
- Cyllid
- Cyllind
- Erythromycin, 6-O-methyl-
- Febzin xl
- Fromilid
- Helas
- Heliclar
- Klabax
- Klacid
- Klaciped
- Klaricid
- Klaricid 500
- Klaricid H.P.
- Klaricid Pediatric
- Klaricid XL
- Klaricid adult
- Klaricid i.v.
- Klaricid paed
- Klarid
- Klarin
- Klax
- Kofron
- Mabicrol
- Macladin
- Maclar
- Mavid
- Mavid;Naxy;
- Mycifor xl
- Naxy
- O(6)-methylerythromycin
- Resclar
- Veclam
- Xetinin xl
- Zeclar
- clarithromycin
- clarithromycina