Pemetrexed Impurity 9 CAS 193281-05-9
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 193281-05-9 |
| Molecular Formula | C19H21N5O7 |
| Molecular Weight | 431.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Pemetrexed Impurity 9 (CAS 193281-05-9) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C19H21N5O7. Molecular weight: 431.40 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C19H21N5O7 |
| Molecular Weight | 431.40 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2012 |
| Nitrogen Atoms | 5 |
Related Pemetrexed Standards
- Pemetrexed Impurity 27 (CAS CATO-C4X-172627)
- (+/-)-Pemetrexed (CAS 756887-58-8)
- Pemetrexed Impurity 13 (CAS CATO-C4X-172613)
- Pemetrexed (CAS 137281-23-3)
- Pemetrexed EP Impurity E (CAS 182009-04-7)
- Pemetrexed Impurity 68 (CAS CATO-C4X-172668)
- Pemetrexed Impurity (CAS 1644286-35-0)
- Pemetrexed Impurity 15 (Mixture of Diastereomers) (CAS 193281-00-4)
Recommended Standards
- (2E)-3-(4-Methanesulfonylphenyl)-2-[4-(trifluoromethoxy)benzenesulfonyl]prop-2-enenitrile (CAS 1025577-54-1)
- Deferasirox Impurity 18 (CAS 1395346-29-8)
- AZD-3839, >98% (HPLC) (CAS 1227163-84-9)
- Progesterone Impurity 95 (CAS CATO-C4X-150295)
- Bictegravir Impurity 9(2R,5R,13aR) (CAS CATO-C4X-21819)
- N-(2-Chlorophenyl)-2-{[3-(trifluoromethyl)phenyl]sulfanyl}acetamide (CAS 339097-96-0)
- Ethyl 4,5-bis(chloromethyl)thiophene-2-carboxylate (CAS 57841-07-3)
- 3-[4-(Benzyloxy)phenyl]-3-[(E)-[(4-nitrophenyl)methylidene]amino]propan-1-ol (CAS 861211-66-7)
- 6-Bromo-4-methoxy-2-(trifluoromethyl)quinoline (CAS 882292-61-7)
- Integrin Binding Peptide trifluoroacetate salt (CAS 278792-07-7)
Why CATO?
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