Butylphthalide Impurity 62 CAS 102126-71-6
| CAS No. | 102126-71-6 |
| Molecular Formula | C8H5BrO3 |
| Molecular Weight | 229.03 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H5BrO3, Butylphthalide Impurity 62 contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 229.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Butylphthalide Impurity 62 (CAS 102126-71-6, C8H5BrO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 62 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 | C8H5BrO3 |
| Molecular Weight | 229.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Br-containing |
Related Butylphthalide Standards
- Butylphthalide Impurity 59 (CAS 503822-00-2)
- Butylphthalide Impurity 60 (CAS 1225206-60-9)
- Butylphthalide Impurity 72 (CAS 1225206-61-0)
- Butylphthalide Impurity 77 (CAS CATO-C4X-181377)
- Butylphthalide Impurity 50 (CAS CATO-C4X-181350)
- Butylphthalide Impurity 48 (CAS 952413-01-3)
- Butylphthalide Impurity 57 (CAS 2997796-75-3)
- Butylphthalide Impurity 32 (CAS 33704-16-4)
Recommended Standards
- [4-(4-Aminophenoxy)phenyl]boronic acid (CAS 1029438-85-4)
- 4-Bromo-2-formylbenzoic acid (CAS 871502-87-3)
- (2-Methoxy-5-phenylpyridin-3-yl)boronic acid (CAS 1029654-23-6)
- 5-Bromo-2-formylbenzoic acid (CAS 4785-52-8)
- Methotrexate Impurity 67 (CAS CATO-C4X-115467)
- Iguratimod Impurity 136 (CAS CATO-C4X-1826136)
- Phenylephrine Impurity 74 (CAS CATO-C4X-146774)
- (R)-(4-Chlorophenyl)(phenyl)methanamine hydrochloride (CAS 451503-29-0)
- Methyl 2-{[4-(4-bromophenyl)-3-oxo-8-thia-4,6-diazatricyclo[7.4.0.0,2,7]trideca-1(9),2(7),5-trien-5-yl]sulfanyl}acetate (CAS 613228-42-5)
- 3-(Piperazin-1-yl)-N,N-dipropylpropan-1-amine (CAS 827614-51-7)
- 3-methyl-1,3-thiazolidine-4-carboxylic acid,HCl (CAS 38254-70-5)
- 2-Bromo-3-methylpyridine-5-carboxylic acid (CAS 901300-51-4)
- Mirogabalin Impurity 18 (CAS 1138245-49-4)
- Tirzepatide(sodium salt) (CAS 2023788-19-2(free base))
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