Azithromycin Impurity 50 CAS CATO-C4X-100350
| CAS No. | CATO-C4X-100350 |
| Molecular Formula | C37H66N2O12 |
| Molecular Weight | 730.93 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Azithromycin Impurity 50 (CAS CATO-C4X-100350) is a certified pharmaceutical impurity reference standard with the molecular formula C37H66N2O12 and a molecular weight of 730.93 g/mol.
Based on its molecular formula C37H66N2O12, Azithromycin Impurity 50 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 730.93 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C37H66N2O12 |
| Molecular Weight | 730.93 g/mol |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Azithromycin Standards
- Azithromycin CP Impurity Q (CAS 99290-97-8)
- Azithromycin CP Impurity R (CAS 161193-44-8)
- Azithromycin Impurity 23 (CAS CATO-C4X-100323)
- Azithromycin impurity 53 (CAS 152727-04-3)
- Azithromycin EP Impurity B (CAS 307974-61-4)
- Azithromycin EP Impurity A (CAS 76801-85-9)
- Azithromycin EP Impurity C (CAS 620169-47-3)
- Azithromycin EP Impurity I (CAS 172617-84-4)
Recommended Standards
- Meropenem Impurity 32 (CAS CATO-C4X-130932)
- Methylprednisolone Impurity 56 (CAS CATO-C4X-191956)
- Methylprednisolone Impurity 69 (CAS CATO-C4X-191969)
- Erythromycin impurity 58 (CAS 145259-56-9)
- Iguratimod Impurity 62 (CAS CATO-C4X-182662)
- Pregabalin Impurity 142 HCl (CAS CATO-C4X-1312142)
- Ruxolitinib Impurity 27 (CAS CATO-C4X-205827)
- 1-[4-(Trifluoromethyl)phenyl]cyclopentanamine (CAS 160001-93-4)
- 4-bromo-5-methyl-thiophene-2-carbaldehyde (CAS 29421-75-8)
- 4-Bromo-1-(4-(chloromethyl)phenyl)-1H-pyrazole (CAS 1178169-30-6)
- 4-(4-Fluorophenyl)-2-(4-methoxyphenoxy)nicotinonitrile (CAS 478245-88-4)
- 71M41949N8 7790-58-1 Potassium tellurate(IV) Dipotassium trioxotellurate Telluric acid, dipotassium salt Telluric acid (H2TeO3), potassium salt (1:2) Telluric acid (H2TeO3), dipotassium salt EINECS 232-213-1 Potassium tellurite UNII-71M41949N8 (CAS 7790-58-1)
- methyl 3-methoxyazetidine-3-carboxylate hydrochloride (CAS 1392803-11-0)
- D-[Ser]8-Semaglutide (CAS CATO-C4X-2226207)
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