Daptomycin Impurity 59 CAS CATO-C4X-137859
| CAS No. | CATO-C4X-137859 |
| Molecular Formula | C72H101N17O27 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Daptomycin Impurity 59.
Daptomycin Impurity 59 (CAS CATO-C4X-137859) is a certified pharmaceutical impurity reference standard with the molecular formula C72H101N17O27C72H101N17O26C71H99N17O26 and a molecular weight of 4864.05 g/mol.
Structurally, Daptomycin Impurity 59 (C72H101N17O27C72H101N17O26C71H99N17O26) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 91.0, corresponding to approximately 91 ring(s) or double-bond equivalent(s). With a molecular weight of 4864.05 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C72H101N17O27 C72H101N17O26 C71H99N17O26 |
| Molecular Weight | 4864.05 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) | 91.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 51 |
Related Daptomycin Standards
- Daptomycin (CAS 103060-53-3)
- Daptomycin Impurity 2 (CAS 121869-35-0)
- Daptomycin Beta-Isomer (CAS 123180-72-3)
- Daptomycin-d5 (CAS 1356579-56-0)
- Daptomycin Impurity 55 (CAS 88399-21-7)
- Daptomycin Impurity 3 (CAS 883991-21-7)
- Daptomycin Impurity 10 (CAS CATO-C4X-137810)
- Daptomycin Impurity 11 (CAS CATO-C4X-137811)
Recommended Standards
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- 2-[2-(Boc-amino)phenyl]acetic Acid (CAS 135807-51-1)
- Decitabine Impurity 40 (CAS CATO-C4X-113740)
- (1R,9S)-5-chloro-1,6,8-triazatricyclo[7.2.1.0²⁷]dodeca-2,4,6-triene (CAS 1638603-72-1)
- 8-Ethyl-3-fluoro-1H-quinolin-2-one (CAS 175609-34-4)
- 1-Methyl-3-(4-methylpiperazin-1-yl)-1H-pyrazol-4-amine dihydrochloride (CAS 1431963-27-7)
- 2-(Difluoromethyl)-4-(trifluoromethyl)phenol (CAS 1261500-20-2)
- Neuropeptide K (human, porcine, rat) trifluoroacetate salt (CAS 96827-05-3)
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