Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Azithromycin, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Azithromycin impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Azithromycin-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.
Our Azithromycin-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.
Azithromycin Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3'-N-[[4-(Acetylamino)phenyl]sulfonyl]-3'-N-demethyl Azithro... | Stable Isotopes | CS-T-94381 | unlabelled: 612069-30-4 | Enquire |
| Azithromycin 13C2 | Stable Isotopes | CS-O-46365 | Not Available | Enquire |
| Azithromycin-13C,d3 | Stable Isotopes | CS-O-06431 | 83905-01-5(Unlabeled) | In Stock |
| Azithromycin-13C,d3 (N-Methyl) | Stable Isotopes | CS-O-57316 | ---- | Enquire |
| Azithromycin-d3 | Stable Isotopes | CS-T-48523 | 163921-65-1 | In Stock |
| Azithromycin-d5 (major) | Stable Isotopes | CS-T-95211 | 83905-01-5(Unlabeled) | Enquire |
| Descladinose Azithromycin-d3 | Stable Isotopes | CS-T-96595 | 2714432-16-1 | Enquire |
| N-Nitroso Azithromycin EP impurity A-13CD3 | Stable Isotopes | CS-O-53432 | ---- | Enquire |
| N-Nitroso Azithromycin EP impurity A-15N-d3 | Stable Isotopes | CS-O-55556 | ---- | Enquire |
| N-Nitroso Azithromycin EP impurity A-d3 | Stable Isotopes | CS-O-53431 | ---- | Enquire |
| N-Nitroso Desmethyl Azithromycin-13Cd3 | Stable Isotopes | CS-O-53433 | ---- | Enquire |
| N-Nitroso-Desmethylazithromycin-15N-13C-d3 | Stable Isotopes | CS-O-46928 | ---- | Enquire |
| N-Nitroso-N-Desmethyl Azithromycin-d3 | Stable Isotopes | CS-T-104117 | ---- | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Azithromycin | API | CS-O-00853 | 83905-01-5 | In Stock |
| Azithromycin dihydrate | API | CS-O-00854 | 117772-70-0 | In Stock |
| Azithromycin monohydrate | API | CS-O-00855 | 121470-24-4 | In Stock |
| Azithromycin dihydrochloride | API | CS-O-42870 | 90581-31-0 | Enquire |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3'-(N,N-Didemethyl)Azithromycin | Impurity | CS-O-07321 | 612069-27-9 | In Stock |
| 3`-N,N-Di(desmethyl)-3'-N-formyl Azithromycin | Impurity | CS-O-07327 | 765927-71-7 | Enquire |
| 3’-N-{[4-(Acetylamino)phenyl]sulfonyl}-3’,3’-didemethyl Azit... | Impurity | CS-O-34800 | 2095879-65-3 | In Stock |
| 3'-De(Dimethylamino)-3'-Oxoazithromycin | Impurity | CS-O-07328 | 612069-25-7 | In Stock |
| 3'-Demethyl-3'-N-[(4-methylphenyl)sulfonyl]azithromycin | Impurity | CS-O-07323 | 612069-31-5 | In Stock |
| 3-Hydroxy Azithromycinoic Acid | Impurity | CS-O-44419 | 2365312-76-9 | Enquire |
| 3'-N-{[4-(Acetylamino)phenyl]sulfonyl}-3'-N-demethylazithrom... | Impurity | CS-O-07324 | 612069-30-4 | In Stock |
| Azithromycin EP Impurity C | Impurity | CS-P-03314 | 620169-47-3 | In Stock |
| Azithromycin EP Impurity D | Impurity | CS-P-03315 | 612069-26-8 | In Stock |
| Azithromycin EP Impurity K | Impurity | CS-ZH-39994 | 612534-95-9 | In Stock |
| Azithromycin EP Impurity O | Impurity | CS-P-07142 | 763924-54-5 | In Stock |
| Azithromycin EP impurity P | Impurity | CS-T-48524 | 92594-45-1 | In Stock |
| Azithromycin impurity P | Impurity | CS-EO-00342 | 92594-45-1 | In Stock |
| Azithromycin N-Oxide | Impurity | CS-O-07326 | 90503-06-3 | In Stock |
| Azithromycin related Compound A | Impurity | CS-O-07319 | 76801-85-9 | In Stock |
| Azithromycin Related Compound F | Impurity | CS-O-07322 | 612069-28-0 | In Stock |
| Des alpha-l-Cladinose NorAzithromycin | Impurity | CS-O-54227 | 620169-52-0 | Enquire |
| Descladinose 6-N-Desmethyl Azithromycin | Impurity | CS-T-95974 | 111247-94-0 | Enquire |
| Desosaminylazithromycin | Impurity | CS-O-07325 | 117693-41-1 | In Stock |
| N-Demethylazithromycin | Impurity | CS-O-11361 | 172617-84-4 | In Stock |
| N-Desmethyl Azithromycin B | Impurity | CS-T-88798 | 857078-26-3 | Enquire |
| 3-Hydroxy Azithromycinoic Acid Sodium Salt | Impurity | CS-EO-01106 | Not Available | Enquire |
| 4’-Hydroxy Azithromycin | Impurity | CS-T-78361 | 756825-20-4 | Enquire |
| Azaerythromycin A 11,12-hydrogen borate | Impurity | CS-P-08697 | 194809-66-0 | Enquire |
| Azithromycin for peak identification (containing impurities ... | Impurity | CS-EG-03361 | 117772-70-0 | Enquire |
| Azithromycin for system suitability (containing impurities ... | Impurity | CS-EG-03360 | Not Available | Enquire |
| Azithromycin Impurity R | Impurity | CS-T-54172 | 161193-44-8 | Enquire |
| N-Desmethyl 13(4-C,4-O-methylene)-pyranosyl Azithromycin | Impurity | CS-T-88479 | 217500-75-9 | Enquire |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-desmethyl Di Nitroso Azithromycin impurity A | Nitrosamine | CS-O-41448 | ---- | Enquire |
| N-Nitroso azithromycin EP impurity A | Nitrosamine | CS-EO-01436 | ---- | In Stock |
| N-nitroso azithromycin EP impurity M | Nitrosamine | CS-O-43353 | Not Available | Enquire |
| N-Nitroso Azithromycin Impurity A Acetate salt | Nitrosamine | CS-O-51618 | ---- | In Stock |
| N-Nitroso Desmethyl Azithromycin | Nitrosamine | CS-EO-01214 | ---- | In Stock |
| N-Nitroso N-desmethyl Azithromycin A | Nitrosamine | CS-O-56378 | ---- | Enquire |
Secondary Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3′-N-Demethyl-3′-N-formylazithromycin | Secondary Standards | CS-SS-25534-50MG | 612069-28-0 | Enquire |
| Azithromycin | Secondary Standards | CS-SS-24136-1GM | 117772-70-0 | Enquire |
| Azithromycin N-oxide | Secondary Standards | CS-SS-25535-30MG | 90503-06-3 | Enquire |
| Azithromycin Related Compound H | Secondary Standards | CS-SS-26049-30MG | 612069-30-4 | Enquire |
| Desosaminylazithromycin | Secondary Standards | CS-SS-25435 | 117693-41-1 | Enquire |
| N-Demethylazithromycin | Secondary Standards | CS-SS-26254-50MG | 172617-84-4 | Enquire |
Therapeutic
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3-Deoxy Azithromycin | Therapeutic | CS-O-07320 | 307974-61-4 | In Stock |
Analytical Standard
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-Nitroso Desmethyl Azithromycin | Analytical Standard | CS-EO-01214-10MG | ---- | Enquire |
| N-nitroso-desmethyl-azithromycin-100 PPM in Acetonitrile | Analytical Standard | CS-EO-01214-1.5ML | ---- | Enquire |