Azithromycin EP Impurity L CAS 90503-06-3
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 90503-06-3 |
| Molecular Formula | C38H72N2O13 |
| Molecular Weight | 764.98 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Azithromycin EP Impurity L (CAS 90503-06-3), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C38H72N2O13. Molecular weight: 764.98 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C38H72N2O13 |
| Molecular Weight | 764.98 g/mol |
| Purity | >90% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 2 |
Related Azithromycin Standards
- Azithromycin EP Impurity D (CAS 612069-26-8)
- Azithromycin impurity 58 (CAS CATO-C4X-100358)
- Azithromycin impurity 57 (CAS CATO-C4X-100357)
- Azithromycin EP Impurity O (CAS 763924-54-5)
- Azithromycin N-Ethyl (CAS 92594-45-1)
- Azithromycin EP Impurity K (CAS 612534-95-9)
- Azithromycin EP Impurity F (CAS 612069-28-0)
- Azithromycin Impurity 45 (CAS 2365312-75-8)
Recommended Standards
- 20261-85-2 4,22,31,37,38,39,40-Octaoxapentacyclo[32.2.1.17,10.116,19.125,28]tetracontane-3,12,21,30-tetrone, 5,23-diethyl-2,11,14,20,29,32-hexamethyl- A 080555 A 80555 Antibiotic 170t DINACTIN (UPJOHN 170T, LOW MELTING) Dinactin NSC-63925 NSC63925 Nonactin,23-didemethyl-5,23-diethyl- Upjohn 170T (low melting) (CAS 20261-85-2)
- Momordin?Ic (CAS 96990-18-0)
- Benzonatate Impurity 3 (CAS CATO-C4X-30663)
- Daclatasvir Impurity 3 (CAS 1009117-28-5)
- Promethazine Impurity 39 (CAS 857523-80-9)
- 2-((4-Amino-5-(thiophen-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-fluorophenyl)acetamide (CAS 886927-86-2)
- (2,5-Dimethylphenyl)(3-(hydroxymethyl)pyrrolidin-1-yl)methanone (CAS 1281743-68-7)
- 1-(2-(2-Hydroxyethoxy)ethyl)-2-imino-10-methyl-5-oxo-N-((tetrahydrofuran-2-yl)methyl)-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide (CAS 618383-68-9)
- 2-bromo-6-(bromomethyl)pyridine hydrobromide (CAS 32938-46-8)
- 107444-51-9 0JS9125PIZ Glucagon-like peptide 1 (7-36) Glucagon-related peptide 1 (Rana catesbeiana), 3-L-glutamic acid-10-L-valine-16-glycine-17-L-glutamine-23-L-isoleucine-24-L-alanine-27-L-valine-30-L-argininamide-31-de-L-proline-32-de-L-lysine- Glp-I (7-36) Proglucagon (78-107) Human glucagon-like peptide-1-(7-36) amide Human GLP-1-(7-36)-amide Glucagon-like peptide-I(7-36) amide Rat GLP-I(7-36)amide Insulinotropin (human) MKC 253 UNII-0JS9125PIZ (CAS 107444-51-9)
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 13829788188 / jacky.chen@cato-chem.com