Anastrozole CAS 120511-73-1
| CAS No. | 120511-73-1 |
| Molecular Formula | C17H19N5 |
| Molecular Weight | 293.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Anastrozole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Anastrozole (CAS 120511-73-1), a certified reference material (molecular formula C17H19N5, MW 293.37 g/mol) for analytical method development and quality control.
Anastrozole (C17H19N5) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C17H19N5 |
| Molecular Weight | 293.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 5 |
Related Anastrozole Standards
- Anastrozole EP Impurity G (CAS 120511-92-4)
- Anastrozole Impurity 31 (CAS CATO-C4X-123931)
- Anastrozole EP Impurity C (CAS 120511-84-4)
- Anastrozole-d12 (CAS 120512-32-5)
- Anastrozole Impurity 30 (CAS CATO-C4X-123930)
- Anastrozole Impurity 32 (CAS CATO-C4X-123932)
- Anastrozole EP Impurity A (CAS 1215780-15-6)
- Anastrozole Impurity 12 (CAS 19294-04-3)
Recommended Standards
- 9-Cyclohexyl-N-phenyl-9H-purin-6-amine (CAS 944833-32-3)
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- (S)-1'-(tert-Butyl)-5,7-dihydrospiro[cyclopenta[b]pyridine-6,3'-pyrrolo[2,3-b]pyridin]-2'(1'H)-one (CAS 2408280-91-9)
- 4-(Cyclohexylamino)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 313225-39-7)
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- 6-Bromo-3-iodoquinolin-4-ol (CAS 1260886-58-5)
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