Methotrexate Impurity 41 CAS 101810-76-8
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 101810-76-8 |
| Molecular Formula | C15H20N2O5 |
| Molecular Weight | 308.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Methotrexate Impurity 41 (CAS 101810-76-8) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C15H20N2O5. Molecular weight: 308.33 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C15H20N2O5 |
| Molecular Weight | 308.33 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
Related Methotrexate Standards
- Methotrexate Impurity 23 (CAS CATO-C4X-115423)
- Methotrexate impurity 48 (CAS CATO-C4X-115448)
- Methotrexate impurity 7 (CAS CATO-C4X-115447)
- Methotrexate Impurity 74 (CAS CATO-C4X-115474)
- Methotrexate Impurity 75 (CAS CATO-C4X-115475)
- Methotrexate Impurity 76 (CAS CATO-C4X-115476)
- Methotrexate Impurity 70 (CAS CATO-C4X-115470)
- Methotrexate Impurity 77 (CAS CATO-C4X-115477)
Recommended Standards
- Palbociclib Impurity 95 (CAS 1779124-68-3)
- Carbamazepine Impurity 15 (CAS CATO-C4X-118115)
- Palbociclib Impurity 78 (CAS 153473-24-6)
- Gadoteridol Impurity 2 (CAS CATO-C4X-22572)
- Hydrocortisone Impurity 31 (CAS 10184-70-0)
- 3-(Chloromethyl)-5-(5-methyl-3-phenylisoxazol-4-yl)-1,2,4-oxadiazole (CAS 261349-42-2)
- 2-(2-{[2-(dimethylamino)ethyl]amino}ethoxy)ethan-1-ol (CAS 1250107-85-7)
- Ethyl 2-(2-(1H-1,2,4-triazol-5-yl)hydrazono)-2-cyanoacetate (CAS 61033-14-5)
- (4Z)-4-[1-(Dimethylamino)-2-(4-methylpiperazin-1-yl)ethylidene]-2-phenyl-4,5-dihydro-1,3-oxazol-5-one (CAS 1164505-73-0)
- Anti-Inflammatory Peptide 3 (CAS 118850-73-0)
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 13829788188 / jacky.chen@cato-chem.com