Raltitrexed Impurity 50 CAS CATO-C4X-138650
| CAS No. | CATO-C4X-138650 |
| Molecular Formula | C20H30N2O7S |
| Molecular Weight | 442.53 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Raltitrexed Impurity 50 is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Raltitrexed Impurity 50 (CAS CATO-C4X-138650), a pharmacopoeial impurity reference standard (molecular formula C20H30N2O7S, MW 442.53 g/mol) used for the identification and quantification of trace impurities in APIs.
Raltitrexed Impurity 50 (C20H30N2O7S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Raltitrexed Impurity 50 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.
Physical & Chemical Properties
| Molecular Formula | C20H30N2O7S |
| Molecular Weight | 442.53 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Raltitrexed Standards
- Raltitrexed Impurity 10 (CAS CATO-C4X-138610)
- Raltitrexed Impurity 9 (CAS 132462-57-8)
- Raltitrexed Impurity 12 (CAS 2135790-65-5)
- Raltitrexed (CAS 112887-68-0)
- Raltitrexed Impurity 38 (CAS CATO-C4X-138638)
- Raltitrexed Impurity 7 (CAS 1042419-89-5)
- Raltitrexed Impurity 31 (CAS CATO-C4X-138631)
- Raltitrexed Impurity 36 (CAS CATO-C4X-138636)
Recommended Standards
- Diltiazem Impurity 25 (CAS 85365-35-1)
- Boc-N-Me-Arg(Tos)-OH (CAS 108695-16-5)
- Racecadotril Impurity 23 (CAS CATO-C4X-110623)
- Fmoc-D-Pen(Acm)-OH (CAS 201531-77-3)
- Neratinib Impurity 30 (CAS CATO-C4X-113430)
- Landiolol Impurity 118 (CAS CATO-C4X-2621118)
- Solifenacin EP Impurity A (CAS 118864-75-8)
- Benzenesulfonic acid, 4,4',4'',4'''-[carbonylbis[imino-5,1,3-benzenetriylbis(carbonylimino)]]tetrakis-, tetrasodium salt (CAS 111150-22-2)
- Tetrahydro-2H-thiopyran-4-acetic acid (CAS 137103-09-4)
- (R)-tert-Butyl (2-methyl-3-((5-(methylthio)pyrimidin-2-yl)amino)propyl)carbamate (CAS 2455423-75-1)
- 5-Amino-1H-indole-3-carbaldehyde (CAS 148563-40-0)
- 1-Benzoyl-4-{4-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]piperidine-1-carbonyl}piperidine (CAS 1775303-11-1)
- 3-(4-Iodophenyl)propanal (CAS 213264-51-8)
- Peptide Impurity 82 (CAS 10491-78-8)
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