Tirofiban Impurity 77 CAS 13022-41-8
| CAS No. | 13022-41-8 |
| Molecular Formula | C19H22N2O5 |
| Molecular Weight | 358.39 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 Tirofiban Impurity 77.
Tirofiban Impurity 77 (CAS 13022-41-8) is a certified pharmaceutical impurity reference standard with the molecular formula C19H22N2O5 and a molecular weight of 358.39 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Tirofiban Impurity 77 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 358.39 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).
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 | C19H22N2O5 |
| Molecular Weight | 358.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 2 |
Related Tirofiban Standards
- Tirofiban Impurity 55 (CAS CATO-C4X-125455)
- Tirofiban Impurity 100 (CAS CATO-C4X-1254100)
- Tirofiban Impurity 98 (CAS CATO-C4X-125498)
- Tirofiban Impurity 56 (CAS 1352839-95-2)
- Tirofiban Impurity 71 (CAS CATO-C4X-125471)
- Tirofiban Impurity 21 (CAS CATO-C4X-125421)
- Tirofiban Impurity 63 (CAS 158808-75-4)
- Tirofiban Impurity 68 (CAS CATO-C4X-125468)
Recommended Standards
- Avanafil Impurity 20 (CAS 2250242-42-1)
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- Atenolol EP Impurity E (CAS 141650-31-9)
- Taurine Impurity 2 (CAS 83982-06-3)
- Naproxen Impurity 42 (CAS CATO-C4X-170842)
- Metronidazole Impurity 9 (CAS 87009-72-1)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-(4-chlorophenyl)thiophen-2-yl)boronate (CAS 1162204-77-4)
- 3-(2-Fluorophenyl)-2-(morpholinomethyl)quinazolin-4(3H)-one (CAS 676630-60-7)
- 4-acetylamido-2,2,6,6-tetramethylpiperidine-1-oxo (CAS 14691-89-5)
- 3,5,7,8-Tetrahydroxy-2-(4-methoxyphenyl)-4H-chromen-4-one (CAS 96238-95-8)
- (2S,4R)-2,6-Diamino-4-hydroxyhexanoic acid (CAS 60594-62-9)
- (2S,3R)-3-Isopropyl-5-oxopyrrolidine-2-carboxylic acid (CAS 291763-93-4)
- Insulin Degludec Impurity 12 (CAS CATO-C4X-215712)
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