Linagliptin Impurity 25 CAS CATO-C4X-110125
| CAS No. | CATO-C4X-110125 |
| Molecular Formula | C31H38BrN7O4 |
| Molecular Weight | 652.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Linagliptin Impurity 25 (CAS CATO-C4X-110125) is a certified pharmaceutical impurity reference standard with the molecular formula C31H38BrN7O4 and a molecular weight of 652.58 g/mol.
Linagliptin Impurity 25 (C31H38BrN7O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Linagliptin Impurity 25 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.
Physical & Chemical Properties
| Molecular Formula | C31H38BrN7O4 |
| Molecular Weight | 652.58 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 7 |
Related Linagliptin Standards
- Linagliptin Impurity 114 (CAS CATO-C4X-1101114)
- Linagliptin Impurity 86 (CAS CATO-C4X-110186)
- Linagliptin Impurity 109 (CAS CATO-C4X-1101109)
- Linagliptin Impurity 179 (CAS CATO-C4X-110179)
- Linagliptin impurity 119 (CAS CATO-C4X-1101119)
- Linagliptin Impurity 42 (CAS 2074688-81-4)
- Linagliptin impurity 167 (CAS CATO-C4X-1101167)
- Linagliptin impurity 168 (CAS CATO-C4X-1101168)
Recommended Standards
- Doxorubicin Impurity N19 (CAS 106401-68-7)
- Diosmin Impurity 10 (CAS 115960-14-0)
- 4,4'-{Oxybis[benzene-4,1-diyl(hexafluoropropane-2,2-diyl)]}dianiline (CAS 131662-80-1)
- Cistanoside D (CAS 94492-21-4)
- Gefitinib Impurity 86 (CAS CATO-C4X-111786)
- Levocetirizine Impurity 72 (CAS CATO-C4X-108372)
- Clomifene Impurity 17 (CAS 5530-99-4(free base))
- Methyl N-(4-isopropylphenyl)-N-tosylglycinate (CAS 333458-95-0)
- 2-(1-chloroethyl)pyrimidine hydrochloride (CAS 2031258-69-0)
- 4304-12-5 benzyl beta-D-glucopyranoside (2R,3R,4S,5S,6R)-2-(benzyloxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol benzyl-O-beta-D-glucopyranoside phenylmethyl beta-D-glucopyranoside 1-O-benzyl-beta-D-glucopyranose CHEBI:141411 (CAS 4304-12-5)
- (1,3,4,5-Tetrahydrobenzo[c]oxepin-7-yl)boronic acid (CAS 2304634-78-2)
- Sophorose (CAS 20429-79-2)
- 2-((tert-Butoxycarbonyl)(methyl)amino)-5-methoxybenzoicacid (CAS 886362-08-9)
- Semaglutide impurity 214 (CAS CATO-C4X-2226214)
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