Prasugrel Impurity 23 CAS 34650-68-5
| CAS No. | 34650-68-5 |
| Molecular Formula | C11H11BrO |
| Molecular Weight | 239.11 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Prasugrel Impurity 23 is closely related to a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Prasugrel Impurity 23 (CAS 34650-68-5) is a certified pharmaceutical impurity reference standard with the molecular formula C11H11BrO and a molecular weight of 239.11 g/mol.
Prasugrel Impurity 23 (C11H11BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C11H11BrO |
| Molecular Weight | 239.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Br-containing |
Related Prasugrel Standards
- Prasugrel Impurity 26 (CAS 134770-09-5)
- Prasugrel Impurity 40 (CAS 1181569-67-4)
- Prasugrel Impurity 35 (CAS CATO-C4X-108635)
- Prasugrel Impurity 11 (CAS 1359829-52-9)
- Prasugrel Impurity 22 (CAS 204205-33-4)
- Prasugrel Impurity 24 (CAS 1359829-72-3)
- Prasugrel Impurity 14 (CAS 178688-43-2)
- Prasugrel Impurity 12 (CAS 1151904-85-6)
Recommended Standards
- Ethyl 2-(4-bromobutoxy)acetate (CAS 54131-75-8)
- 5-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-2-carbaldehyde (CAS 1073354-14-9)
- 9-Bromo-6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-one (CAS 72472-29-8)
- 1-(3-Chlorophenyl)ethane-1-sulfonyl chloride (CAS 1251375-86-6)
- Letrozole Impurity 28 (CAS 46209-39-6)
- Pranoprofen Impurity 41 (CAS CATO-C4X-181141)
- Metoclopramide Impurity 24 (CAS 55304-05-7)
- 2,4-Dichlorobenzoic acid 2-[1-(3-aminophenyl)ethylidene]hydrazide (CAS 316144-59-9)
- 5-Methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)nicotinonitrile (CAS 1310384-33-8)
- Methyl 2-({6-[(4-methylphenyl)sulfanyl]-2-phenylpyrimidin-4-yl}sulfanyl)benzoate (CAS 478067-35-5)
- Benzyl[(6-chloropyridin-3-yl)methyl]methylamine (CAS 359447-55-5)
- 2-Oxoazepane-3-carbonitrile (CAS 16372-14-8)
- 5-Amino-2-methyl-3,4-dihydroisoquinolin-1(2h)-one (CAS 118206-31-8)
- Des-Leu14-Tirzepatide (CAS CATO-CPTD788959)
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