Montelukast EP Impurity E CAS 1187586-58-8
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 1187586-58-8 |
| Molecular Formula | C41H46ClNO5S2 |
| Molecular Weight | 732.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Montelukast EP Impurity E (CAS 1187586-58-8) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C41H46ClNO5S2. Molecular weight: 732.39 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C41H46ClNO5S2 |
| Molecular Weight | 732.39 g/mol |
| Purity | >90% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Montelukast Standards
- Montelukast Impurity C07 (CAS 1242260-05-4)
- Montelukast EP Impurity D (CAS 1187586-61-3)
- Montelukast EP Impurity D Isomer (CAS CATO-C4X-10314)
- Montelukast Acyl-b-D-glucuronide (CAS 188717-17-1)
- Montelukast Methoxymethoxy Impurity (CAS 184764-27-0)
- Montelukast Sulfone (CAS 2714018-24-1)
- Montelukast Impurity 22 (CAS 1266620-74-9)
- Montelukast Impurity 9 (CAS CATO-C4X-10319)
Recommended Standards
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- Busulfan Impurity 6 (CAS 928-51-8)
- Ascorbic Acid Impurity 39 (CAS 492-30-8)
- 4-Chlorobenzofuro[3,2-d]pyrimidine (CAS 39876-88-5)
- tert-Butyl ((S)-1-amino-1-oxo-3-((S)-2-oxopyrrolidin-3-yl)propan-2-yl)carbamate (CAS 2713439-69-9)
- Methyl 2-((3aS,4R,6R,6aS)-6-formyl-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)acetate (CAS 2688788-65-8)
- Brinzolamide Hydrochloride (CAS 150937-43-2)
- Atrial Natriuretic Peptide (ANP)(1-28) Alpha (Human, Ovine, Canine) (CAS 91917-63-4)
Why CATO?
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