Cyclophosphamide Impurity 21 CAS 2517939-95-4
| CAS No. | 2517939-95-4 |
| Molecular Formula | C9H20ClN2O3P |
| Molecular Weight | 270.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Cyclophosphamide Impurity 21 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies Cyclophosphamide Impurity 21 (CAS 2517939-95-4), a pharmacopoeial impurity reference standard (molecular formula C9H20ClN2O3P, MW 270.69 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Cyclophosphamide Impurity 21 (C9H20ClN2O3P) contains an amide group, a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 0.5, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 270.69 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C9H20ClN2O3P |
| Molecular Weight | 270.69 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.5 |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Cyclophosphamide Standards
- Cyclophosphamide Impurity 42 (CAS 2387771-96-0)
- Cyclophosphamide-d8 (CAS 1178903-96-2)
- Cyclophosphamide Impurity 47 (CAS CATO-C4X-230647)
- Cyclophosphamide Impurity 12 (CAS CATO-C4X-230612)
- 4-Oxo Cyclophosphamide (CAS 27046-19-1)
- Cyclophosphamide impurity 40 (CAS CATO-C4X-230640)
- Cyclophosphamide Impurity 12 (CAS 78149-83-4)
- Cyclophosphamide Impurity 19 (CAS 22089-17-4)
Recommended Standards
- 7789-60-8 58R3866PUA Phosphorus tribromide Phosphorous tribromide EINECS 232-178-2 HSDB 1217 Phosphorous bromide Phosphorus bromide (PBr3) Tribromophosphine UNII-58R3866PUA Phosphorus tribromide [UN1808] [Corrosive] UN1808 (CAS 7789-60-8)
- Methyl 3-[(6-chloropyridazin-3-yl)oxy]thiophene-2-carboxylate (CAS 338756-35-7)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com