Ixazomib Impurity 69 CAS 121-48-2
| CAS No. | 121-48-2 |
| Molecular Formula | C7H6O8S2 |
| Molecular Weight | 282.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Ixazomib Impurity 69 (CAS 121-48-2) is a certified pharmaceutical impurity reference standard with the molecular formula C7H6O8S2 and a molecular weight of 282.25 g/mol.
Structurally, Ixazomib Impurity 69 (C7H6O8S2) contains a carbohydrate-derived structure, a sulfone group. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 282.25 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H6O8S2 |
| Molecular Weight | 282.25 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 2 |
Related Ixazomib Standards
- Ixazomib Impurity 21 (CAS CATO-C4X-126721)
- Ixazomib Impurity 23 (CAS CATO-C4X-126723)
- Ixazomib Impurity 41 (CAS CATO-C4X-126741)
- Ixazomib Impurity 88 (CAS CATO-C4X-126788)
- Ixazomib Impurity 61 (CAS CATO-C4X-126761)
- Ixazomib Impurity 80 (CAS CATO-C4X-126780)
- Ixazomib Impurity 63 (CAS CATO-C4X-126763)
- Ixazomib Impurity 67 (CAS 1012-84-6)
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