Caspofungin Impurity 5 CAS CATO-C4X-15755
| CAS No. | CATO-C4X-15755 |
| Molecular Formula | C51H86N10O15 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Caspofungin Impurity 5 (C51H86N10O15C2H4O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 1139.36 g/mol, it falls into the high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Caspofungin Impurity 5 (CAS CATO-C4X-15755) is a certified pharmaceutical impurity reference standard with the molecular formula C51H86N10O15C2H4O2 and a molecular weight of 1139.36 g/mol.
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 | C51H86N10O15 2*C2H4O2 |
| Molecular Weight | 1139.36 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 10 |
Related Caspofungin Standards
- Caspofungin Impurity 24 (CAS 1131958-73-0)
- Caspofungin Impurity Triflate Salt (CAS 1201042-11-6)
- Caspofungin EP Impurity A (CAS 1202167-57-4)
- Caspofungin EP Impurity A Acetate (CAS 1202167-57-4(Free Base))
- Caspofungin Pneumocandin B0 Impurity (CAS 135575-42-7)
- Caspofungin Impurity A02-2 (CAS 1404083-47-1)
- Caspofungin Impurity A02-2 Acetate (CAS 1404083-47-1(Free Base))
- Caspofungin Pneumocandin C0 (CAS 144074-96-4)
Recommended Standards
- Mifepristone Impurity 2 (CAS 104004-92-4)
- Losartan EP Impurity K (CAS 114798-36-6)
- Niraparib Impurity 4 (CAS 138229-59-1)
- Nickel sulfide (CAS 11113-75-0)
- 1-(2,2,2-Trifluoroethyl)piperidin-4-amine hydrochloride (CAS 180869-49-2)
- Potassium trifluoro(4-fluorobenzoyl)borate (CAS 1590389-14-2)
- (7-Fluorobenzo[d][1,3]dioxol-4-yl)boronic acid (CAS 1256345-92-2)
- N-(2-Bromo-4-isopropylphenyl)hydrazinecarbothioamide (CAS 1263376-55-1)
- 6-Iodo-2-(4-methoxyphenyl)imidazo[1,2-a]pyridine (CAS 477871-43-5)
- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
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