Indobufen Impurity 37 CAS 858847-40-2
| CAS No. | 858847-40-2 |
| Molecular Formula | C12H15NO3 |
| Molecular Weight | 221.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Indobufen Impurity 37 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.
Indobufen Impurity 37 (CAS 858847-40-2) is a certified pharmaceutical impurity reference standard with the molecular formula C12H15NO3 and a molecular weight of 221.26 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Indobufen Impurity 37 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 221.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C12H15NO3 |
| Molecular Weight | 221.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Indobufen Standards
- Indobufen Impurity 92 (CAS CATO-C4X-179292)
- Indobufen Impurity 70 (CAS CATO-C4X-179270)
- Indobufen Impurity 24 (CAS 33254-87-4)
- Indobufen Impurity 15 (CAS 160723-33-1)
- Indobufen Impurity 16 (CAS 21762-22-1)
- Indobufen Impurity 19 (CAS 7463-53-8)
- Indobufen Impurity N9 (CAS 858006-96-9)
- Indobufen Impurity 73 (CAS CATO-C4X-179273)
Recommended Standards
- 4-((7H-Purin-6-yl)amino)-2-methylbutan-1-ol (CAS 23599-75-9)
- H-Gly-Phe-NH? (CAS 1510-04-9)
- Rimegepant Impurity 162 (CAS CATO-C4X-2487162)
- 1-(propylsulfonyl)pyrrolidine-2-carboxylic acid (CAS 1009517-64-9)
- Atogepant Impurity 87 (CAS CATO-C4X-328587)
- Bilastine impurity 116 (CAS 93142-62-2)
- Budesonide Impurity N19 (CAS 3949-79-9)
- {1-[(4-Fluorophenyl)methyl]-2-sulfanyl-1H-imidazol-5-yl}methanol (CAS 941868-96-8)
- 4-((furan-2-ylmethyl)amino)-5-(hydroxymethyl)pyrimidin-2(1H)-one (CAS 1333466-52-6)
- 2-(Pyridin-3-yl)pyridin-4-amine (CAS 40963-62-0)
- 4-Chloro-3-(2-chlorophenylcarbamoyl)benzeneboronic acid (CAS 1449132-45-9)
- 5-Piperazin-1-ylmethyl-furan-2-carboxylic acid (CAS 878431-40-4)
- Fulvestrant impurity 51 (CAS CATO-C4X-191751)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
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