Methotrexate Impurity 63 CAS 2801801-56-7
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 2801801-56-7 |
| Molecular Formula | C7H7BrN6 |
| Molecular Weight | 255.07 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Methotrexate Impurity 63 (CAS 2801801-56-7) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C7H7BrN6. Molecular weight: 255.07 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C7H7BrN6 |
| Molecular Weight | 255.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 6 |
Related Methotrexate Standards
- Methotrexate Impurity 33 (CAS CATO-C4X-115433)
- Methotrexate Impurity 67 (CAS CATO-C4X-115467)
- Methotrexate EP Impurity L (CAS 52980-68-4)
- Methotrexate Impurity 31 (CAS CATO-C4X-115431)
- Methotrexate Impurity 40 (CAS 94807-78-0)
- Methotrexate Impurity 34 (CAS CATO-C4X-115434)
- Methotrexate Impurity 60 (CAS CATO-C4X-115460)
- Methotrexate Impurity 66 (CAS CATO-C4X-115466)
Recommended Standards
- Methyl6-bromoimidazo[1,2-a]pyridine-5-carboxylate (CAS 2091427-06-2)
- Crisaborole-d4 (CAS CATO-C4X-202134)
- Methyl 7-bromoimidazo[1,5-a]pyridine-1-carboxylate (CAS 2060591-16-2)
- Dacomitinib Impurity 31 (CAS CATO-C4X-208631)
- Cyclophosphamide Impurity 25 (CAS 2387771-94-8)
- 3-Chloro-2-((difluoromethyl)sulfonyl)-5-(trifluoromethyl)pyridine (CAS 1823183-18-1)
- N-(1-Butyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)-3,5-dimethoxybenzamide (CAS 941991-31-7)
- 2-Amino-6-azaspiro[3.4]Octan-7-one (CAS 2169073-38-3)
- Methyl 4-[4-(4-chlorophenyl)piperazino]-3-nitrobenzenecarboxylate (CAS 478246-43-4)
- KALA Amphipathic Peptide (CAS 187987-64-0)
Why CATO?
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