Montelukast Impurity N4 CAS 855473-50-6
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 855473-50-6 |
| Molecular Formula | C7H11BrO2 |
| Molecular Weight | 207.07 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Montelukast Impurity N4 (CAS 855473-50-6), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C7H11BrO2. Molecular weight: 207.07 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C7H11BrO2 |
| Molecular Weight | 207.07 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
Related Montelukast Standards
- Montelukast Impurity 57 (CAS 30220-25-8)
- Montelukast Impurity 55 (CAS 152922-86-6)
- Montelukast Impurity 48 (CAS 87764-54-3)
- Montelukast Impurity 9 (CAS 30430-40-1)
- Montelukast Impurity 21 (CAS 152922-72-0)
- Montelukast Impurity N6 (CAS 66-40-0)
- Montelukast Impurity N27 (CAS 610-97-9)
- Montelukast Impurity 54 (CAS 89729-09-9)
Recommended Standards
- 1-Bromonaphthalene (CAS 90-11-9)
- 1189661-61-7 4-Fluorophenethyl Bromide-d4 (CAS 1189661-61-7)
- 4-bromo butyl acrylate (CAS 178215-45-7)
- Tirofiban Impurity 124 (CAS CATO-C4X-1254124)
- Sorbic acid impurity 2 (CAS 51830-12-7)
- 4-(Aminomethyl)-3-methoxypyridine (CAS 909895-75-6)
- 3-Cyclopropoxy-4-methoxypicolinaldehyde (CAS 1243481-98-2)
- Aluminum chloride hydrate (CAS 10124-27-3)
- Methyl 6-(tert-butyl)-2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 438532-45-7)
- Semaglutide Impurity 160 (x TFA Salt) (CAS CATO-C4X-2226160)
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