Atorvastatin Impurity 72 CAS CATO-C4X-113272
| CAS No. | CATO-C4X-113272 |
| Molecular Formula | C37H44N2O5 |
| Molecular Weight | 596.76 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Atorvastatin Impurity 72 (C37H44N2O5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 596.76 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).
CATO supplies Atorvastatin Impurity 72 (CAS CATO-C4X-113272), a pharmacopoeial impurity reference standard (molecular formula C37H44N2O5, MW 596.76 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.
As a certified reference material (CRM), Atorvastatin Impurity 72 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C37H44N2O5 |
| Molecular Weight | 596.76 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Atorvastatin Standards
- Atorvastatin Impurity 33(3S,5R) (CAS CATO-C4X-113233)
- Atorvastatin Allyl Ester (CAS 915092-85-2)
- Atorvastatin Calcium EP Impurity P (CAS 581772-29-4)
- Atorvastatin Impurity 22 (CAS 1035205-25-4)
- Atorvastatin Cyclic (Fluorophenyl) Impurity (CAS 873950-18-6)
- Atorvastatin Impurity 110 (CAS 887470-43-1)
- Atorvastatin Impurity 129 (CAS 873950-17-5)
- Atorvastatin Impurity 156 (CAS CATO-C4X-1132156)
Recommended Standards
- 1-Ethyl-2-(7-(1-ethyl-3,3-dimethyl-5-sulfoindolin-2-ylidene)hepta-1,3,5-trien-1-yl)-3,3-dimethyl-3H-indol-1-ium-5-sulfonate (CAS 186522-21-4)
- Peramivir Impurity 118 (CAS CATO-C4X-1833118)
- DMAC-BP (CAS 1685287-55-1)
- Peramivir impurity 142 (CAS CATO-C4X-1833142)
- Iguratimod Impurity 15 HCl (CAS 149436-41-9)
- Isavuconazole Impurity 77 (CAS 32399-13-6)
- Vericiguat Impurity 73 (CAS CATO-C4X-289673)
- 5-Methoxy-2-(1,3,5-trimethyl-1H-pyrazol-4-yl)benzoic acid (CAS 218930-41-7)
- 2,3',4',5-Tetrachlorobiphenyl-3,4,6-d3 (CAS 1219794-77-0)
- Benzyl ((1S,3R,4R)-3-fluoro-4-hydroxycyclohexyl)carbamate (CAS 2711860-18-1)
- Gold, (triphenylphosphine)(triphenylsilanolato)- (CAS 185097-90-9)
- 2-(2-(4-Chlorophenyl)oxazol-5-yl)-1-phenylethanone (CAS 919778-72-6)
- (S)-Ethyl piperidine-2-carboxylate (CAS 22328-78-5)
- Acetyl Dipeptide-1 (CAS 196604-48-5)
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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