Leptin (22-56) (human) CAS 183598-56-3
| CAS No. | 183598-56-3 |
| Molecular Formula | C171H298N50O56 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 4064.58 g/mol gives Leptin (22-56) (human) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Leptin (22-56) (human) (CAS 183598-56-3), molecular formula C171H298N50O56C2HF3O2 and molecular weight 4064.58 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Leptin (22-56) (human) is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 4064.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C171H298N50O56 C2HF3O2 |
| Molecular Weight | 4064.58 g/mol |
| Purity | >90% |
| 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) | 48.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2009 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 50 |
Related Leptin Standards
Recommended Standards
- 1-Benzhydryl-3-isopropylazetidin-3-ol (CAS 848192-91-6)
- Amylmetacresol (CAS 1300-94-3)
- (4-Amino-5-iodopyridin-3-yl)methanol (CAS 1823230-72-3)
- 4-(4-Bromophenyl)piperidine-4-carboxylic acid (CAS 913542-80-0)
- 4-(Prop-2-yn-1-yl)morpholine hydrochloride (CAS 122340-61-8)
- 3-Amino-3-(2-methoxy-5-methylphenyl)propanoic acid (CAS 1391317-05-7)
- 3-Chloro-6-isopropyl-4-(trifluoromethyl)pyridazine (CAS 1437436-31-1)
- Trimethylsilylcyclopentadiene (mixture of isomers) (CAS 25134-15-0)
- 2,4,6,8-Tetrabromodibenzo[b,d]furan (CAS 617707-91-2)
- Tirzepatide Impurity 59 (CAS CATO-C4X-324059)
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