Cholecystokinin Impurity 82 TFA Salt CAS CATO-CPTD788582
| CAS No. | CATO-CPTD788582 |
| Molecular Formula | C10H16N4O3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Cholecystokinin Impurity 82 TFA Salt is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 354.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Cholecystokinin Impurity 82 TFA Salt (CAS CATO-CPTD788582) is a certified pharmaceutical impurity reference standard with the molecular formula C10H16N4O3C2HF3O2 and a molecular weight of 354.29 g/mol.
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.
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 | C10H16N4O3 C2HF3O2 |
| Molecular Weight | 354.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Cholecystokinin Standards
- Cholecystokinin-33 (10-20) (bovine, porcine) (CAS 100900-23-0)
- Cholecystokinin-33 (1-21) (porcine) (H-2410.0500) (CAS 101831-07-6)
- Cholecystokinin Octapeptide free acid (desulfated) (H-2075.0001) (CAS 103974-46-5)
- 110207-62-0 Acetyl-Cholecystokinin Octapeptide (2-8) (sulfated) MFCD00133565 (CAS 110207-62-0)
- Cholecystokinin Octapeptide (1-3) (desulfated) H-Asp-Tyr-Met-OH (CAS 121880-94-2)
- Cholecystokinin Octapeptide (1-5) (desulfated) (CAS 121880-96-4)
- Cholecystokinin Octapeptide (desulfated) (H-2070.0005) (CAS 198483-36-2)
- Cholecystokinin Precursor (107-115) (human) (desulfated) (CAS 198483-37-3)
Recommended Standards
- Topiroxostat Impurity 41 (CAS CATO-C4X-105541)
- Loxoprofen Impurity 19 (CAS 80530-55-8)
- Urapidil Impurity 83 (CAS CATO-C4X-192483)
- Nirogacestat-d5 (CAS CATO-C4X-34093)
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- (3S,4R)-4-(Naphthalen-2-yl)pyrrolidine-3-carboxylic acid (CAS 1049978-40-6)
- 5-Bromo-7-methylbenzo[b]thiophene-2-carboxylic acid (CAS 1935615-20-5)
- N-Ethyl o/p-toluenesulfonamide (Industrial Product) (CAS 8047-99-2)
- 141801-03-8 IL-1 Receptor Peptide (human) (CAS 141801-03-8)
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