Montelukast Impurity 47 CAS 1079753-36-8
| 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
CATO manufactures Montelukast Impurity 47 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Montelukast Impurity 47 (CAS 1079753-36-8) is a certified pharmaceutical impurity reference standard with the molecular formula C29H28ClNO2 and a molecular weight of 457.99 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Montelukast Impurity 47 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 457.99 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 |
Related Montelukast Standards
- Montelukast Impurity 10 (CAS 150026-75-8)
- Montelukast Impurity 31 (CAS 287930-77-2)
- Montelukast Impurity 49 (CAS CATO-C4X-103149)
- Montelukast Impurity 36 (CAS 142569-69-5)
- Montelukast (3R)-Hydroxy Benzoate (CAS 150026-72-5)
- Montelukast Impurity 19 (CAS 1258428-71-5)
- Montelukast 3-Oxo Benzoate (CAS 149968-11-6)
- Montelukast Impurity 11 (CAS 120578-04-3)
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)
- 3-((4-Chlorobenzyl)thio)-5-((naphthalen-1-yloxy)methyl)-4-phenyl-4H-1,2,4-triazole (CAS 335218-30-9)
- Cefprozil Impurity 41 (CAS CATO-C4X-149241)
- FCN437 Impurity 2 (CAS CATO-C4X-33242)
- Tetrabenazine Impurity 32-D3 (CAS CATO-C4X-274832)
- 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)
- N-isopropyl-3-methyl-1,2,4-thiadiazol-5-amine (CAS 17467-16-2)
- N-Methoxy-1-(4-(trifluoromethyl)benzo[d]thiazol-2-yl)azetidine-3-carboxamide (CAS 1396757-30-4)
- Tirzepatide Impurity 44 (CAS CATO-C4X-324044)
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 18665070610 / Nicole.chen@cato-chem.com