Omarigliptin Impurity 13 CAS 1443380-88-8
| CAS No. | 1443380-88-8 |
| Molecular Formula | C17H20F2N4O3S |
| Molecular Weight | 398.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Omarigliptin Impurity 13.
Omarigliptin Impurity 13 (CAS 1443380-88-8) is a certified pharmaceutical impurity reference standard with the molecular formula C17H20F2N4O3S and a molecular weight of 398.43 g/mol.
Structurally, Omarigliptin Impurity 13 (C17H20F2N4O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 398.43 g/mol, it falls into the moderately-high-molecular-weight range. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C17H20F2N4O3S |
| Molecular Weight | 398.43 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Omarigliptin Standards
- Omarigliptin (CAS 1226781-44-7)
- Omarigliptin Impurity 14 (CAS CATO-C4X-114714)
- Omarigliptin Impurity 15 (CAS CATO-C4X-114715)
- Omarigliptin Impurity 17 (CAS CATO-C4X-114717)
- Omarigliptin Impurity 18 (CAS CATO-C4X-114718)
- Omarigliptin Impurity 2 (CAS 1172623-99-2)
- Omarigliptin Impurity 3 (CAS 951127-25-6)
- Omarigliptin Impurity 4 (CAS 1456616-42-4)
Recommended Standards
- Fosravuconazole Impurity 1 (CAS CATO-C3D-263000)
- N'-(1,2-dihydronaphtho[2,1-b]furan-2-carbonyl)-4-methoxybenzenesulfonohydrazide (CAS 478064-27-6)
- Methyl 3-(2-(2-morpholino-2-oxoacetyl)-1H-pyrrol-1-yl)benzo[b]thiophene-2-carboxylate (CAS 477863-34-6)
- Irestatin 9389 (CAS 626221-47-4)
- Pitavastatin Impurity N2 (CAS 167073-19-0)
- Escitalopram EP Impurity K (CAS 128196-02-1)
- Amisulpride EP Impurity B (CAS CATO-C4X-104559)
- [1,3]Dioxolo[4,5-c]pyridin-4-yl(phenyl)methanol (CAS 109218-96-4)
- 3-Oxo-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid (CAS 933726-65-9)
- 2-(1-(4-Methoxybenzyl)-2,5-dioxoimidazolidin-4-yl)acetic acid (CAS 1179367-19-1)
- (±)-MDEA hydrochloride (CAS 74341-78-9)
- 1-(3,5-Dichloro-4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl)-3-methylimidazolidin-2-one (CAS 1092345-98-6)
- tert-Butyl 3-(((6-bromopyridin-2-yl)amino)methyl)piperidine-1-carboxylate (CAS 1065484-38-9)
- D-[Phe]6-Liraglutide (CAS CATO-C4X-199235)
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