Methotrexate Impurity 30 CAS 881-33-4
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 881-33-4 |
| Molecular Formula | C7H8N6O |
| Molecular Weight | 192.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Methotrexate Impurity 30 (CAS 881-33-4) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H8N6O. Molecular weight: 192.18 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H8N6O |
| Molecular Weight | 192.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1957 |
| Nitrogen Atoms | 6 |
Related Methotrexate Standards
- Methotrexate EP Impurity A (CAS 945-24-4)
- Methotrexate Impurity N6 (CAS 4261-17-0)
- Methotrexate Impurity N2 (CAS 708-74-7)
- Methotrexate impurity N1 (CAS 4215-07-0)
- Methotrexate impurity N4 (CAS 54643-27-5)
- Methotrexate Impurity N5 (CAS 56364-06-8)
- Methotrexate Impurity 62 (CAS 942840-87-1)
- Methotrexate Impurity 60 (CAS CATO-C4X-115460)
Recommended Standards
- 1-(4-Fluorophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one (CAS 100553-83-1)
- Fluconazole Impurity 69 (CAS 98414-56-3)
- (3-(4-Fluorophenyl)-1h-pyrazol-4-yl)methanol (CAS 1017783-51-5)
- Doxorubicin Impurity 32 (CAS CATO-C4X-203332)
- Vildagliptin Impurity 29 (CAS 1803168-08-2)
- 2-((4-(4-Chlorophenyl)-5-(4-methoxyphenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(2,5-dimethylphenyl)acetamide (CAS 476484-56-7)
- ethyl 1-(1,3-thiazol-2-yl)-1H-pyrazole-4-carboxylate (CAS 1461714-18-0)
- N-(1-(1H-benzo[d]imidazol-2-yl)-2-methylpropyl)benzamide (CAS 25810-60-0)
- Methyl 6,6-dimethyl-5-oxothiomorpholine-3-carboxylate (CAS 153893-73-3)
- Acetyl Tetrapeptide-11 (CAS 928006-88-6)
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