Dutasteride Impurity 21 CAS 2965-07-3
| CAS No. | 2965-07-3 |
| Molecular Formula | C8H5F6N |
| Molecular Weight | 229.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Dutasteride Impurity 21 (CAS 2965-07-3), molecular formula C8H5F6N and molecular weight 229.12 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution, Dutasteride Impurity 21 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 229.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C8H5F6N |
| Molecular Weight | 229.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Dutasteride Standards
- Dutasteride Impurity 19 (CAS 313-13-3)
- Dutasteride Impurity 20 (CAS 3822-20-6)
- Dutasteride Impurity 4 (CAS 328-93-8)
- Dutasteride Impurity 21 (CAS 4640-41-9)
- Dutasteride Impurity 15 (CAS 84-58-2)
- Dutasteride impurity G (CAS 433-19-2)
- Dutasteride Impurity 22 (CAS 320-88-7)
- Dutasteride Impurity 22 (CAS 55982-15-5)
Recommended Standards
- N-((5-Bromo-4-methylpyridin-3-yl)methyl)ethanamine (CAS 351458-26-9)
- N-[(6-Bromopyridin-2-yl)methyl]propan-2-amine (CAS 478366-11-9)
- Bis(Trifluoromethyl)Aniline (CAS 3700-19-4)
- N1-(4-Bromophenyl)-N1-methylethane-1,2-diamine (CAS 851265-79-7)
- 4-Bromo-2-cyclohexyl-5-methylpyridazin-3(2H)-one (CAS 68143-23-7)
- Deoxyarbutin (CAS 53936-56-4)
- 1580AE 35975-71-4 8-Chloro-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid C10H6ClNO3 (CAS 35975-71-4)
- Ethyl 5-amino-6-chloro-2-methylpyrimidine-4-carboxylate (CAS 1393541-06-4)
- α-Tocopherol phosphate disodium (CAS 60934-46-5)
- 2-((Methylamino)oxy)ethanamine dihydrochloride (CAS 1187830-44-9)
- 7-Chlorobenzofuran-4-carboxylic acid (CAS 1038509-42-0)
- 2-(4-Chlorobenzoyl)-3,3-bis(methylthio)acrylonitrile (CAS 62455-56-5)
- N-(2-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)isobutyramide (CAS 2246834-15-9)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
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