Montelukast Impurity 11 CAS 120578-04-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 120578-04-3 |
| Molecular Formula | C28H18Cl2N2 |
| Molecular Weight | 453.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Montelukast Impurity 11 (CAS 120578-04-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C28H18Cl2N2. Molecular weight: 453.36 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C28H18Cl2N2 |
| Molecular Weight | 453.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Montelukast Standards
- Montelukast 3-Oxo Benzoate (CAS 149968-11-6)
- Montelukast Impurity 19 (CAS 1258428-71-5)
- Montelukast Impurity 36 (CAS 142569-69-5)
- Montelukast (3R)-Hydroxy Benzoate (CAS 150026-72-5)
- Montelukast Impurity 10 (CAS 150026-75-8)
- Montelukast Impurity 31 (CAS 287930-77-2)
- Montelukast Impurity 47 (CAS 1079753-36-8)
- Montelukast Impurity 49 (CAS CATO-C4X-103149)
Recommended Standards
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- 4-(4-(4-Bromophenyl)-5-((3-methoxybenzyl)thio)-4H-1,2,4-triazol-3-yl)pyridine (CAS 477330-13-5)
- 2-(2,3-Dichlorophenyl)-1,3-dioxoisoindoline-5-carboxylic acid (CAS 313260-34-3)
- N-(2-((3,4-Dichlorophenyl)amino)-2-oxoethyl)-N-(furan-2-ylmethyl)furan-2-carboxamide (CAS 332848-64-3)
- 3-((Tetrahydro-2H-pyran-4-yl)oxy)propan-1-amine (CAS 933758-72-6)
- 4-methyl-3-(3-methylbutoxy)aniline hydrochloride (CAS 1333710-52-3)
- (S)-Morpholine-2-carbonitrile (CAS 1359658-57-3)
- 1-(2,6-Dichlorophenyl)-3-(3,4-difluorophenyl)propan-1-one (CAS 898777-52-1)
- Semaglutide impurity 99 (CAS CATO-C4X-222699)
Why CATO?
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