Cyclophosphamide Impurity 43 CAS CATO-C4X-230643
| CAS No. | CATO-C4X-230643 |
| Molecular Formula | C9H22ClN2O4P |
| Molecular Weight | 288.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Cyclophosphamide Impurity 43 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies Cyclophosphamide Impurity 43 (CAS CATO-C4X-230643), a pharmacopoeial impurity reference standard (molecular formula C9H22ClN2O4P, MW 288.71 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to an amide group, a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, Cyclophosphamide Impurity 43 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 288.71 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C9H22ClN2O4P |
| Molecular Weight | 288.71 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 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Cyclophosphamide Standards
- Cyclophosphamide impurity 30 (CAS 2924754-60-7)
- Cyclophosphamide impurity 33 (CAS CATO-C4X-230633)
- Cyclophosphamide impurity 37 (CAS CATO-C4X-230637)
- Cyclophosphamide Impurity 26 (CAS CATO-C4X-230626)
- Cyclophosphamide Impurity 22 (CAS 3308-51-8)
- Cyclophosphamide impurity 32 (CAS CATO-C4X-230632)
- Cyclophosphamide impurity 01 (CAS 35144-64-0)
- Cyclophosphamide Impurity 9 (CAS 40277-05-2)
Recommended Standards
- (3-Chloro-4-fluorophenyl)(3,5-difluorobenzyl)sulfane (CAS 1443302-33-7)
- (4-Chloro-2-fluorobenzyl)(3,4-difluorophenyl)sulfane (CAS 1443302-76-8)
- (3-Chloro-2-fluorobenzyl)(3,5-difluorophenyl)sulfane (CAS 1443302-85-9)
- N-(6-Chloro-5-sulfamoyl-1H-benzo[d]imidazol-2-yl)acetamide (CAS 89725-03-1)
- Brivaracetam Impurity 37 (CAS 2165431-90-1)
- Apalutamide Impurity 109 (CAS CATO-C4X-2749109)
- Empagliflozin Impurity 79 (CAS 2452301-24-3)
- 4-(2-(Bromomethyl)butyl)thiazole (CAS 1465067-90-6)
- Nafamostat hydrochloride (CAS 80251-32-7)
- (2-Phenyloxetan-2-yl)methanamine (CAS 1891203-91-0)
- 5-[3-[4-[2-(4-Fluorophenyl)ethoxy]phenyl]propyl]-2-furancarboxylic Acid (CAS 849727-81-7)
- 2-Nitro-5-(1H-1,2,4-triazol-1-yl)benzoic acid (CAS 167626-66-6)
- 898788-88-0 Ethyl 2-[3-(3-fluorophenyl)propanoyl]benzoate DTXSID90644518 (CAS 898788-88-0)
- Proinsulin C-Peptide (55-89) (human) (CAS 11097-48-6)
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