Montelukast Impurity 12 CAS 807638-71-7
| CAS No. | 807638-71-7 |
| Molecular Formula | C30H30ClNO4S |
| Molecular Weight | 536.08 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Montelukast Impurity 12 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Montelukast Impurity 12 (CAS 807638-71-7) is a certified pharmaceutical impurity reference standard with the molecular formula C30H30ClNO4S and a molecular weight of 536.08 g/mol.
Montelukast Impurity 12 (C30H30ClNO4S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C30H30ClNO4S |
| Molecular Weight | 536.08 g/mol |
| Purity | 97%+ |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Montelukast Standards
- Montelukast Impurity 58 (CAS CATO-C4X-103158)
- Montelukast Impurity 43 (CAS 2365398-67-8)
- Montelukast Impurity 44 (CAS 2365398-66-7)
- Montelukast Impurity C167 (CAS 866923-62-8)
- Montelukast EP Impurity B (CAS 918972-54-0)
- Montelukast EP Impurity F (CAS 937275-23-5)
- Montelukast Impurity 4 (CAS 1772578-77-4)
- Montelukast Impurity 2 (CAS CATO-C4X-10312)
Recommended Standards
- 5-[2,6-dichloro-4-(trifluoromethyl)phenyl]-2-furaldehyde 2-[2,6-dichloro-4-(trifluoromethyl)phenyl]hydrazone (CAS 259243-83-9)
- Clopidogrel Impurity 34 (CAS 1331383-23-3)
- Chlorohydro[2-[[[3-[[3-(4-morpholinyl-κN4)propyl]amino-κN]propyl]thio-κS]methyl]phenyl-κC]iridium(III) (CAS 1799787-28-2)
- 2,2'-(5-Iodo-1,3-phenylene)bis(1,1,1,3,3,3-hexafluoropropan-2-ol) (CAS 53173-72-1)
- Ipriflavone Impurity 1 (CAS 3669-41-8)
- Ofloxacin EP Impurity C (CAS 95848-94-5)
- Flumetasone Impurity 18 (CAS CATO-C4X-191018)
- Varenicline Impurity 60 (CAS CATO-C4X-196260)
- 4-(5-(Difluoromethyl)thiophen-2-yl)-2-fluorophenol (CAS 2092285-71-5)
- hexahydro-1H-pyrrolo[2,1-c]morpholin-3-ylmethanamine (CAS 1181643-74-2)
- 4-Ethynyltetrahydro-2H-pyran-4-carboxylic acid (CAS 2167622-62-8)
- 4-[3-(trifluoromethyl)phenyl]butan-1-ol (CAS 75906-37-5)
- (2Z)-2-(Benzenesulfonyl)-3-(dimethylamino)-1-phenylprop-2-en-1-one (CAS 108289-88-9)
- Peptide Impurity 05 (CAS 2322924-83-2)
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