Anastrozole Impurity 30 CAS CATO-C4X-123930
| CAS No. | CATO-C4X-123930 |
| Molecular Formula | C11H14Br2 |
| Molecular Weight | 306.04 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H14Br2, Anastrozole Impurity 30 contains bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 306.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO supplies Anastrozole Impurity 30 (CAS CATO-C4X-123930), a pharmacopoeial impurity reference standard (molecular formula C11H14Br2, MW 306.04 g/mol) used for the identification and quantification of trace impurities in APIs.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C11H14Br2 |
| Molecular Weight | 306.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
Related Anastrozole Standards
- Anastrozole-d12 (CAS 120512-32-5)
- Anastrozole EP Impurity C (CAS 120511-84-4)
- 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
- 2-Bromo-1-(bromomethyl)-4-tert-butylbenzene (CAS 246139-76-4)
- 2-Iodo-5-(methoxycarbonyl)benzoic acid (CAS 1048025-64-4)
- 1-Bromo-4-(5-bromopentyl)benzene (CAS 28026-32-6)
- 2-Iodo-3-(methoxycarbonyl)benzoic acid (CAS 106589-19-9)
- Chlorhexidine Impurity 23 (CAS CATO-C4X-225623)
- Nimodipine Impurity 50 (CAS CATO-C4X-138550)
- Linagliptin Impurity 70 (CAS 2253964-98-4)
- Oxazol-4-ylmethanamine (CAS 55242-82-5)
- 2-amino-N-(furan-2-ylmethyl)propanamide (CAS 1164109-23-2)
- 2-(((4-(4-Chlorophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)methyl)-1H-benzo[d]imidazole (CAS 573707-75-2)
- 1-Pentyl-1,4-diazepane (CAS 1016533-86-0)
- n,n-Dimethyl-3-[(methylamino)methyl]aniline (CAS 1094641-61-8)
- 3-[(oxan-4-yl)formamido]propanoic acid (CAS 1042797-15-8)
- Tau Peptide (74-102) (Exon 3/Insert 2 Domain) trifluoroacetate salt (CAS 1322695-34-0)
Why CATO?
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