Azithromycin Impurity 36 CAS 57794-18-0
| CAS No. | 57794-18-0 |
| Molecular Formula | C8H17NO3 |
| Molecular Weight | 175.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Azithromycin Impurity 36 is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Azithromycin Impurity 36 (CAS 57794-18-0, C8H17NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Azithromycin Impurity 36 (C8H17NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Azithromycin Impurity 36 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H17NO3 |
| Molecular Weight | 175.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 1 |
Related Azithromycin Standards
- Azithromycin Impurity 30 (CAS 2089577-97-7)
- Azithromycin impurity 59 (CAS 67342-52-3)
- Azithromycin monohydrateDISCONTINUED (CAS 121470-24-4)
- Azithromycin Impurity 25 (CAS CATO-C4X-100325)
- Azithromycin Impurity 27 (CAS CATO-C4X-100327)
- Azithromycin Dihydrate (CAS 117772-70-0)
- Azithromycin Impurity 35 (CAS 117693-42-2)
- Azithromycin EP Impurity J (CAS 117693-41-1)
Recommended Standards
- 5-Phenylpiperidin-2-one (CAS 3973-63-5)
- Erlotinib Impurity 41 (CAS 69088-96-6)
- (E)-3-(dimethylamino)-1-phenylprop-2-en-1-one (CAS 1201-93-0)
- Palonosetron Impurity 20 (CAS 98841-72-6)
- Quinapril EP Impurity G (CAS 103833-16-5)
- Mianserin Impurity 123 (CAS CATO-C4X-1369123)
- Letermovir Impurity 22 (CAS CATO-C4X-291522)
- Benzyl(cyclobutylmethyl)amine (CAS 356539-83-8)
- [Xyl-binap RuCl benzene]Cl (CAS 157262-12-9)
- 5-Bromo-3-methyl-2-nitroaniline (CAS 1266383-33-8)
- N-(3-Nitrobenzyl)oxetan-3-amine (CAS 1341171-36-5)
- 2-((2,4-Dichlorobenzyl)thio)-4-(4-methoxyphenyl)-6-(p-tolyl)nicotinonitrile (CAS 444153-66-6)
- 939-23-1 452KD9YCG7 4-Phenylpyridine Pyridine, 4-phenyl- 5-20-07-00549 (Beilstein Handbook Reference) BRN 0110490 EINECS 213-357-4 NSC 70375 NSC 77935 p-Phenylpyridine UNII-452KD9YCG7 (CAS 939-23-1)
- Insulin Degludec Impurity 5 (CAS CATO-C4X-21575)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com