Liraglutide Impurity 28 CAS CATO-C4X-199228
| CAS No. | CATO-C4X-199228 |
| Molecular Formula | C25H42N2O7 |
| Molecular Weight | 482.61 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Liraglutide Impurity 28 (CAS CATO-C4X-199228) is a certified pharmaceutical impurity reference standard with the molecular formula C25H42N2O7 and a molecular weight of 482.61 g/mol.
Liraglutide Impurity 28 (C25H42N2O7) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
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 | C25H42N2O7 |
| Molecular Weight | 482.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | ≥95% |
| 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Liraglutide Standards
- Liraglutide Impurity 22 (CAS 536721-25-2)
- Liraglutide Impurity 30 (CAS CATO-C4X-199230)
- Liraglutide Impurity 31 (CAS CATO-C4X-199231)
- Liraglutide Impurity 14 TFA Salt (CAS CATO-C4X-199214)
- Liraglutide Impurity 13 TFA Salt (CAS CATO-C4X-199213)
- Liraglutide Impurity 18 TFA Salt (CAS CATO-C4X-199218)
- Liraglutide Impurity 17 TFA Salt (CAS CATO-C4X-199217)
- Liraglutide(3-31)TFA Salt (CAS CATO-C4X-19921)
Recommended Standards
- Formoterol Impurity 73 (CAS CATO-C4X-152573)
- Fmoc-Lys(Boc)-OH-<SUP>15</SUP>N<SUB>2</SUB> (CAS 1217447-72-7)
- Indacaterol Impurity 8 (CAS 435273-75-9)
- Alectinib Impurity N2 (CAS 1256584-79-8)
- Afoxolaner Impurity 19 (CAS CATO-C4X-313719)
- Labetalol Impurity 62 (CAS CATO-C4X-246662)
- Cinitapride Impurity 30 (CAS CATO-C4X-290830)
- (E)-N,N-Diethyl-2-phenylethenamine (CAS 82489-29-0)
- 2-((Pyridin-3-ylmethyl)amino)butan-1-ol hydrochloride (CAS 1048673-58-0)
- 4,5-Dichloro-2-fluoro-3-methylbenzoic acid (CAS 2432848-83-2)
- Tert-butyl n-(octahydro-1h-isoindol-3a-ylmethyl)carbamate (CAS 351369-63-6)
- 1-(3-Methoxythiophen-2-yl)-N-methylmethanamine (CAS 944450-93-5)
- 2-(oxolan-2-yl)ethan-1-ol (CAS 33606-34-7)
- Urotensin II-Related Peptide (human, mouse, rat) (CAS 342878-90-4)
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