Clindamycin Phosphas Impurity 116 CAS CATO-C4X-1341116
| CAS No. | CATO-C4X-1341116 |
| Molecular Formula | C18H34ClN2O8PS |
| Molecular Weight | 504.96 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Clindamycin Phosphas Impurity 116 (C18H34ClN2O8PS) is characterized by an amide group, a sulfone group, a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies Clindamycin Phosphas Impurity 116 (CAS CATO-C4X-1341116), a pharmacopoeial impurity reference standard (molecular formula C18H34ClN2O8PS, MW 504.96 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C18H34ClN2O8PS |
| Molecular Weight | 504.96 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 | 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 Phosphas EP Impurity L (CAS 620181-05-7)
- Clindamycin Impurity 122 (CAS 1803042-32-1)
- Clindamycin Impurity 160 (CAS CATO-C4X-1341160)
- Clindamycin Impurity 163 (CAS CATO-C4X-1341163)
- Clindamycin Phosphas EP Impurity C (CAS 28708-34-1)
- Clindamycin Phosphas EP Impurity D (CAS 54887-30-8)
- Clindamycin (2R-cis)-Diastereomer 2-Phosphate (CAS 1800297-62-4)
- Clindamycin Phosphas Impurity 46 (CAS CATO-C4X-134146)
Recommended Standards
- Methyl 1-benzyl-5-(4-chlorophenyl)-3-(4-methoxyphenyl)-4,6-dioxooctahydropyrrolo[3,4-c]pyrrole-1-carboxylate (CAS 318239-70-2)
- Ceftolozane Impurity 16 (CAS CATO-C4X-240616)
- 1-(3-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)amino)-2-hydroxypropyl)-N-phenyl-3,4-dihydroisoquinoline-2(1H)-carboxamide (CAS 251310-55-1)
- (((2R,3R,4R)-2-(((tert-Butyldimethylsilyl)oxy)methyl)-3,4-dihydro-2H-pyran-3,4-diyl)bis(oxy))bis(tert-butyldimethylsilane) (CAS 79999-47-6)
- Perampanel Impurity 52 (CAS CATO-C4X-243052)
- Rosuvastatin EP Impurity C (CAS 1422619-13-3)
- Fluvoxamine Impurity 155 (CAS CATO-C4X-195155)
- N-methyl-1-(pyridin-3-yl)methanesulfonamide (CAS 1420958-02-6)
- 1-Benzyl-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 54698-60-1)
- 3-[6-(5-hydroxypentyl)-1-oxo-isoindolin-2-yl]piperidine-2,6-dione (CAS 2762039-42-7)
- 4-Methyl-5-[3-(trifluoromethyl)benzenesulfonyl]-1,2,3-thiadiazole (CAS 339008-89-8)
- Pethidine Impurity 2 (CAS 79858-48-3)
- 9-Isopropyl-1-oxa-4-azaspiro[5.5]undecane (CAS 1248097-59-7)
- Semaglutide Impurity 163 (x TFA Salt) (CAS CATO-C4X-2226163)
Why CATO?
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