Atorvastatin Impurity 15 CAS 906552-19-0
| CAS No. | 906552-19-0 |
| Molecular Formula | C33H33FN2O5 |
| Molecular Weight | 556.62 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.
CATO supplies Atorvastatin Impurity 15 (CAS 906552-19-0), a pharmacopoeial impurity reference standard (molecular formula C33H33FN2O5, MW 556.62 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Atorvastatin Impurity 15 (C33H33FN2O5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 556.62 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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 | C33H33FN2O5 |
| Molecular Weight | 556.62 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >90% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Atorvastatin Standards
- Atorvastatin Impurity 100 (CAS CATO-C4X-1132100)
- Atorvastatin Impurity 133 (CAS CATO-C4X-1132133)
- Atorvastatin Impurity 134 (CAS CATO-C4X-1132134)
- Atorvastatin EP Impurity O (CAS 887196-30-7)
- 5-Oxo Atorvastatin (CAS 1391052-82-6)
- Atorvastatin Impurity 34 (CAS CATO-C4X-113234)
- Atorvastatin Impurity 93 (CAS 163217-74-1)
- Atorvastatin Impurity 94 (CAS 163217-70-7)
Recommended Standards
- 3,5-Di([2,2':6',2''-terpyridin]-4'-yl)phenol (CAS 686780-96-1)
- 1,3-Bis(1-(7-nitroquinazolin-4-yl)piperidin-4-yl)propane (CAS 52791-15-8)
- Irinotecan Impurity 29 (CAS CATO-C4X-166729)
- Dexamethasone Impurity 88 (CAS CATO-C4X-116588)
- Lumateperone Impurity 74 Tosylate (CAS CATO-C4X-220174)
- Loratadine impurity 84 (CAS CATO-C4X-142684)
- Topiramate Impurity 3 (CAS CATO-C4X-17683)
- Dibenzyl Adipate (CAS 2451-84-5)
- Tegoprazan impurity 84 (CAS CATO-C4X-229784)
- 5-Bromo-2,3-difluoro-4-methoxybenzoic acid (CAS 1780570-14-0)
- [2-(Oxan-4-yloxy)pyrimidin-4-yl]methanamine (CAS 1439902-42-7)
- 4-(n-(4-((Difluoromethyl)thio)phenyl)sulfamoyl)benzoic acid (CAS 327092-87-5)
- 2,3,6-Trifluoropyridin-4-amine (CAS 63489-55-4)
- Semaglutide impound 212 (CAS CATO-C4X-2226212)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com