Clindamycin Impurity 68 CAS CATO-C4X-134168
| CAS No. | CATO-C4X-134168 |
| Molecular Formula | C18H34ClN2O11PS |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Clindamycin Impurity 68 (CAS CATO-C4X-134168, C18H34ClN2O11PS) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Clindamycin Impurity 68 (C18H34ClN2O11PS) contains an amide group, a sulfone group, a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.5, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 552.96 g/mol, it falls into the moderately-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.
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 | C18H34ClN2O11PS |
| Molecular Weight | 552.96 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.5 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Clindamycin Standards
- Clindamycin Impurity 164 (CAS 1123211-65-3 (free base))
- Clindamycin Impurity 16 (CAS 1123211-66-4)
- Clindamycin Impurity 73 (CAS 1123211-66-4 (free base))
- Clindamycin Pentadecanoate HCl (CAS 1123211-67-5 (free base);)
- Clindamycin Heptadecanoate (CAS 1123211-69-7 (free base))
- Clindamycin Impurity 22 HCI (CAS 1123211-70-0（free base）)
- Clindamycin phosphate ester EP impurity F isomer (CAS 1149764-21-5)
- Clindamycin Phosphate Sulfoxide Impurity (CAS 1228573-90-7)
Recommended Standards
- Hydrocortisone Acetate EP Impurity G (CAS 81968-66-3)
- Fosaprepitant impurity 10 (CAS CATO-C4X-116810)
- Osimertinib Impurity 104 (CAS CATO-C4X-2045104)
- Bicyclohexyl-3,5-dione (CAS 17844-66-5)
- methyl 2-chloro-1,3-thiazole-5-carboxylate (CAS 72605-86-8)
- 4-Ethyl-1-(1-ethyl-1h-1,2,4-triazol-5-yl)cyclohexan-1-amine (CAS 1248326-28-4)
- 4-Amino-6-(difluoromethyl)-5-hydroxynicotinamide (CAS 1804515-30-7)
- cis-2-fluorocyclopropanamine;hydrochloride (CAS 114152-95-3)
- 4,5-Dibromo-3,6-dibutoxyphthalonitrile (CAS 288303-40-2)
- Tau Peptide (45-73) (Exon 2/Insert 1 Domain) trifluoroacetate salt (CAS 2022956-54-1)
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