Atorvastatin Impurity 108 Pivalate CAS 676260-66-5 (free base)
| CAS No. | 676260-66-5 (free base) |
| Molecular Formula | C11H21NO4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, Atorvastatin Impurity 108 Pivalate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 333.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Atorvastatin Impurity 108 Pivalate (CAS 676260-66-5 (free base)), a pharmacopoeial impurity reference standard (molecular formula C11H21NO4C5H10O2, MW 333.43 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 | C11H21NO4 C5H10O2 |
| Molecular Weight | 333.43 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| Nitrogen Atoms | 1 |
Related Atorvastatin Standards
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Recommended Standards
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- 3-Ethyl-3H-purine-6(7H)-thione (CAS 327036-84-0)
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- 4-(5-Chloromethyl-[1,2,4]oxadiazol-3-yl)-benzoic acid methyl ester (CAS 1092400-75-3)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com