Montelukast Impurity 47 CAS 1079753-36-8
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1079753-36-8 |
| Molecular Formula | C29H28ClNO2 |
| Molecular Weight | 457.99 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Montelukast Impurity 47 (CAS 1079753-36-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C29H28ClNO2. Molecular weight: 457.99 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C29H28ClNO2 |
| Molecular Weight | 457.99 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- (2S)-2-(4-Chlorophenyl)-1-[4-[(5R,7R)-6,7-dihydro-7-hydroxy-5-methyl-5H-cyclopentapyrimidin-4-yl]-1-piperazinyl]-3-[(1-methylethyl)amino]-1-propanone (CAS 1001264-89-6)
- 2-(2-(3-(2-(7-Chloro-2-quinolinyl)-ethenylphenyl)-3-hydroxypropyl)phenyl)-2-propanol (CAS 142569-70-8)
- Boron Tris(trifluoromethanesulfonate) (CAS 64371-01-3)
- Cefprozil Impurity 41 (CAS CATO-C4X-149241)
- FCN437 Impurity 2 (CAS CATO-C4X-33242)
- 4-((2-Chlorophenyl)thio)-2-phenylpyrimidine-5-carboxylic acid (CAS 400076-29-1)
- tert-Butyl 3-(((1-(3-fluorobenzyl)-1H-benzo[d]imidazol-2-yl)oxy)methyl)piperidine-1-carboxylate (CAS 1420958-82-2)
- 2,3,5-Triphenyltetrazolium Iodide (CAS 13014-90-9)
- 2-Acetyl-6-methylisonicotinaldehyde (CAS 1393570-76-7)
- Tirzepatide Impurity 44 (CAS CATO-C4X-324044)
Why CATO?
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