Butylphthalide Impurity 41 Potassium CAS 952412-99-6
| CAS No. | 952412-99-6 |
| Molecular Formula | C11H13O3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Butylphthalide Impurity 41 Potassium (CAS 952412-99-6), a pharmacopoeial impurity reference standard (molecular formula C11H13O3K, MW 232.32 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Butylphthalide Impurity 41 Potassium is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 232.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), Butylphthalide Impurity 41 Potassium 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 | C11H13O3 K |
| Molecular Weight | 232.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Butylphthalide Standards
- Butylphthalide Impurity 70 (CAS 102126-70-5)
- Butylphthalide Impurity 62 (CAS 102126-71-6)
- Butylphthalide Impurity 67 (CAS 102308-43-0)
- Butylphthalide Impurity 68 (CAS 105694-44-8)
- Butylphthalide Impurity 11 (CAS 111943-62-5)
- Butylphthalide Impurity 1 (CAS 119-67-5)
- Butylphthalide Impurity 60 (CAS 1225206-60-9)
- Butylphthalide Impurity 72 (CAS 1225206-61-0)
Recommended Standards
- N-Nitroso Fentanyl Impurity 16 (CAS CATO-C4X-134616)
- Avibactam Impurity 63 (CAS CATO-C4X-134863)
- Bilastine impurity 80 (CAS 1789305-52-7)
- 4-(5-Methylpyridin-2-yl)morpholine (CAS 251101-37-8)
- Piperacillin Impurity 57 (CAS CATO-C4X-173257)
- 5-Isopropoxy-1H-indazol-6-yl-6-boronic acid (CAS 2304634-23-7)
- 3-(Methylamino)-N,3-dimethyl-butanamide (CAS 859195-79-2)
- (1S,5S)-tert-Butyl 2-(aminomethyl)-8-azabicyclo[3.2.1]octane-8-carboxylate (CAS 2166410-53-1)
- 3-Bromo-2-methoxypyridine-d3 (CAS 1185314-35-5)
- Peptide Impurity 82 (CAS 10491-78-8)
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