Remdesivir Impurity 40 CAS 1369903-46-7
| CAS No. | 1369903-46-7 |
| Molecular Formula | C33H31N5O4 |
| Molecular Weight | 561.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Remdesivir Impurity 40 (CAS 1369903-46-7) is a certified pharmaceutical impurity reference standard with the molecular formula C33H31N5O4 and a molecular weight of 561.63 g/mol.
Structurally, Remdesivir Impurity 40 (C33H31N5O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 21.0, corresponding to approximately 21 ring(s) or double-bond equivalent(s). With a molecular weight of 561.63 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.
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.
CATO manufactures Remdesivir Impurity 40 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 | C33H31N5O4 |
| Molecular Weight | 561.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 5 |
Related Remdesivir Standards
- Remdesivir Impurity 3 (CAS 1355357-49-1)
- Remdesivir Impurity 41 (CAS CATO-C4X-210041)
- Remdesivir Impurity 42 (CAS 1191237-66-7)
- Remdesivir Impurity 10 (CAS 1911578-73-8)
- Remdesivir Impurity 2 (CAS 1355049-94-3)
- Remdesivir Impurity 50 (CAS CATO-C4X-210050)
- Remdesivir Impurity 30 (CAS CATO-C4X-210030)
- Remdesivir (CAS 1809249-37-3)
Recommended Standards
- Palbociclib Impurity 141 (CAS CATO-C4X-1125141)
- para-Hydroxy Atorvastatin-d5 Lactone (CAS 265989-49-9)
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- Vardenafil Impurity 61 (CAS 933796-16-8)
- Alanyl Glutamine Impurity 51 (CAS CATO-C4X-197451)
- Cabazitaxel Impurity 34 (CAS CATO-C4X-111534)
- Ubrogepant Impurity 27 (CAS CATO-C4X-340227)
- Amiodarone Impurity 12 (CAS 4265-27-4)
- 5-(Bromomethyl)isoquinoline hydrobromide (CAS 586373-76-4)
- 4-N-Butoxyphenylacetic Acid (CAS 4547-57-3)
- Lubiprostone Impurity 16 (CAS CATO-C4X-113616)
- 1-Ethyl-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carbaldehyde (CAS 65740-50-3)
- n-(2-(Methyl(phenyl)amino)ethyl)piperidine-4-carboxamide (CAS 926240-40-6)
- Pancreatic Polypeptide (31-36) Free Acid, human (CAS 192432-73-8)
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