3-Oxo Atorvastatin Calcium salt CAS 887196-30-7 (free base)
| CAS No. | 887196-30-7 (free base) |
| Molecular Formula | 2*C33H32FN2O5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 3-Oxo Atorvastatin Calcium salt (CAS 887196-30-7 (free base)), a certified reference material (molecular formula C33H32FN2O5Ca, MW 595.70 g/mol) for analytical method development and quality control.
Based on its molecular formula C33H32FN2O5Ca, 3-Oxo Atorvastatin Calcium salt contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 595.70 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | 2*C33H32FN2O5 Ca |
| Molecular Weight | 595.70 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >80% |
| 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) | 18.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Oxo Standards
- Atorvastatin Impurity 22 (CAS 1035205-25-4)
- Atorvastatin Calcium Propylene Glycol Solvate (CAS 1040350-07-9)
- Atorvastatin Lactone Diepoxide (CAS 1046118-40-4)
- Atorvastatin Lactam calcium Salt Impurity (CAS 1046118-41-5)
- Atorvastatin Impurity 86 (CAS 1046118-44-8)
- Atorvastatin Impurity 141 Calcium Salt (CAS 1046378-58-8)
- Atorvastatin Impurity 76 (CAS 1099474-28-8)
- Atorvastatin EP Impurity F(Calcium Salt) (CAS 1105067-87-5)
Recommended Standards
- 1-(3-Hydroxy-3-methyl-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)ethan-1-one (CAS 300381-34-4)
- 4-(5-(4-Pentylphenyl)pyrimidin-2-yl)benzamide (CAS 63617-55-0)
- 2-Propyl-2-pentenoic Acid (CAS 33786-47-9)
- Fmoc-β-Ala-2-Thi-OH (CAS CATO-CPTD788494)
- 2-(((Ethylsulfonyl)methyl)amino)benzoic acid (CAS 926268-76-0)
- 5-(Aminomethyl)furan-2-sulfonamide (CAS 712256-45-6)
- 5-((2-Chloro-6-fluorobenzyl)thio)-3-(cyclohexylmethyl)-8,9-dimethoxyimidazo[1,2-c]quinazolin-2(3H)-one (CAS 1030857-19-2)
- Benzbromarone EP Impurity C (CAS 1477-19-6)
- 4,7,8-Trichlorocinnoline (CAS 856179-55-0)
- Semaglutide impurity 87 (CAS CATO-C4X-222687)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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