Anastrozole-d12 CAS 120512-32-5
| CAS No. | 120512-32-5 |
| Molecular Formula | - |
| Molecular Weight | 305.44 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.
Anastrozole-d12 (CAS 120512-32-5), molecular formula C17H7D12N5 and molecular weight 305.44 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Anastrozole-d12 (C17H7D12N5) contains deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 305.44 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C17H7D12N5 |
| Molecular Weight | 305.44 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 5 |
Related Anastrozole Standards
- Anastrozole EP Impurity C (CAS 120511-84-4)
- Anastrozole Impurity 30 (CAS CATO-C4X-123930)
- Anastrozole Impurity 39 (CAS CATO-C4X-123939)
- Anastrozole Impurity 8 (CAS CATO-C4X-12398)
- Anastrozole Impurity 9 (CAS 120512-03-0)
- Anastrozole Impurity 14 (CAS 1338800-82-0)
- Anastrozole (CAS 120511-73-1)
- Anastrozole EP Impurity G (CAS 120511-92-4)
Recommended Standards
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- N-Cyclohexyl-4-(pyrazin-2-yl)piperazine-1-carbothioamide (CAS 89007-47-6)
- Pitolisant Impurity 54 (CAS CATO-C4X-252054)
- Tyrphostin A9 (CAS 10537-47-0)
- cis-1,2-trans-3-Trimethylcyclopentane (Relative Stereochemistry) (CAS 15890-40-1)
- 4-[6-(4-Methyl-piperazin-1-yl)-5-trifluoromethyl-pyridin-3-yl]-benzoic acid methyl ester (CAS 1208081-77-9)
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- 2-[6-(4-Methoxyphenyl)imidazo[2,1-b][1,3]thiazol-3-yl]acetic acid (CAS 68347-95-5)
- 2-(Difluoromethyl)-4-fluoro-3-hydroxy-5-nitropyridine (CAS 1806997-30-7)
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- (Azetidin-2-yl)methanamine hydrochloride (CAS 1187932-56-4)
- Neuroendocrine Regulatory Peptide-1 (human) (H-6622.1000) (CAS 954420-50-9)
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