Azithromycin-13CD3 CAS CATO-CCAD301299
| CAS No. | CATO-CCAD301299 |
| Molecular Formula | C37[13C]H69D3N2O12 |
| Molecular Weight | 753.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Azithromycin-13CD3 (CAS CATO-CCAD301299), molecular formula C37[13C]H69D3N2O12 and molecular weight 753.00 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Azithromycin-13CD3 (C37[13C]H69D3N2O12) contains deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.5, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 753.00 g/mol, it falls into the high-molecular-weight range. 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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.
Physical & Chemical Properties
| Molecular Formula | C37[13C]H69D3N2O12 |
| Molecular Weight | 753.00 g/mol |
| Purity | >95% |
| 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) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Azithromycin Standards
- Azithromycin-13C-d3 (CAS CATO-C4X-100337)
- Azithromycin-d3 (CAS 163921-65-1)
- Azithromycin-d5 (major) (CAS CATO-CCAD301941)
- Azithromycin Impurity 49 (CAS CATO-C4X-100349)
- Azithromycin (CAS 83905-01-5)
- Azithromycin EP Impurity M (CAS 765927-71-7)
- Azithromycin Impurity 40 (CAS 76820-32-1)
- Azithromycin impurity 55 (CAS 944124-75-8)
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- 1-(azetidin-3-yl)-4-phenyl-1H-1,2,3-triazole hydrochloride (CAS 1461713-51-8)
- 6-Bromo-thiochroman-3-ylamine (CAS 885270-59-7)
- 4-[(2-fluorophenyl)methylidene]piperidine hydrochloride (CAS 183950-19-8)
- Semaglutide impurity 66 (CAS CATO-C4X-222666)
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