Cholecystokinin Octapeptide (1-4) (desulfated) CAS 80790-40-5
| CAS No. | 80790-40-5 |
| Molecular Formula | C20H28N4O8S |
| Molecular Weight | 484.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Cholecystokinin Octapeptide (1-4) (desulfated) is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Cholecystokinin Octapeptide (1-4) (desulfated) (CAS 80790-40-5) is a high-purity analytical reference standard with the molecular formula C20H28N4O8S and a molecular weight of 484.50 g/mol.
Cholecystokinin Octapeptide (1-4) (desulfated) (C20H28N4O8S) contains a flavonoid core, an amide group, a sulfone 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C20H28N4O8S |
| Molecular Weight | 484.50 g/mol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Cholecystokinin Standards
- Cholecystokinin Octapeptide (1-3) (desulfated) H-Asp-Tyr-Met-OH (CAS 121880-94-2)
- Cholecystokinin Octapeptide (sulfated) (H-2060.0005) (CAS 25679-23-6)
- Cholecystokinin, CCK Tetrapeptide (30-33) (CAS 35144-91-3)
- Cholecystokinin Octapeptide (1-5) (desulfated) (CAS 121880-96-4)
- Cholecystokinin Octapeptide (desulfated) (H-2070.0005) (CAS 198483-36-2)
- Cholecystokinin, CCK (27-33) (CAS 47910-79-2)
- Cholecystokinin Precursor (24-32) (rat) H-Val-Pro-Val-Glu-Ala-Val-Asp-Pro-Met-OH (CAS 99291-20-0)
- Cholecystokinin- 33, porcine (CAS 67256-27-3)
Recommended Standards
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- 1-(4-Bromo-3-fluorophenyl)-2,2,2-trifluoroethan-1-one (CAS 886369-87-5)
- 4,4-Dimethyl-4,5-dihydrooxazole (CAS 30093-99-3)
- 2-(Benzyloxy)-5-methyl-3-nitropyridine (CAS 1881329-84-5)
- H-Pra-OH (CAS 23235-01-0)
- 2,2,2-Trifluoro-n-(2-methylpyridin-3-yl)acetamide (CAS 1260214-26-3)
- Benzo[b]thiophen-2(3H)-imine (CAS 1006386-86-2)
- Semaglutide Impurity 144 (CAS 394210-59-4)
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