Butylphthalide Impurity 31 CAS 96610-56-9
| CAS No. | 96610-56-9 |
| Molecular Formula | C12H22O3 |
| Molecular Weight | 214.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 214.30 g/mol gives Butylphthalide Impurity 31 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Butylphthalide Impurity 31 (CAS 96610-56-9) is a certified pharmaceutical impurity reference standard with the molecular formula C12H22O3 and a molecular weight of 214.30 g/mol.
Based on its molecular formula C12H22O3, Butylphthalide Impurity 31 contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 214.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C12H22O3 |
| Molecular Weight | 214.30 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1984 |
Related Butylphthalide Standards
- Butylphthalide Impurity 67 (CAS 102308-43-0)
- Butylphthalide Impurity 68 (CAS 105694-44-8)
- Butylphthalide Impurity 51 (CAS 17689-42-8)
- Butylphthalide Impurity 39 (CAS 1485081-25-1)
- Butylphthalide Impurity 10 (CAS 857538-11-5)
- Butylphthalide Impurity 47 (CAS 380905-48-6)
- Butylphthalide Impurity 57 (CAS 2997796-75-3)
- Butylphthalide Impurity 48 (CAS 952413-01-3)
Recommended Standards
- Sitafloxacin impurity 53 (CAS 1933694-45-1)
- Pramocaine Impurity 1 (CAS 48152-09-6)
- (R)-α-Hydroxycyclohexanebutanoic Acid Ethyl Ester (CAS 95500-39-3)
- Bempedoic Acid Impurity 40 (CAS CATO-C4X-218940)
- Minoxidil EP Impurity A (CAS 35139-67-4)
- Gefitinib Impurity 84 (CAS CATO-C4X-111784)
- Tolvaptan Impurity 68 (CAS 1580889-24-2)
- 1-(Prop-2-yn-1-yl)-4-(m-tolyl)-1H-pyrazole (CAS 1394023-35-8)
- Ac-DL-Asp-OH (CAS 2545-40-6)
- 2-((4-(2-Chlorophenyl)-6-(4-chlorophenyl)-3-cyanopyridin-2-yl)thio)-N-(2-(trifluoromethyl)phenyl)acetamide (CAS 332372-39-1)
- 3-Fluoro-2-(prop-2-yn-1-ylamino)benzoic acid (CAS 1249531-02-9)
- 2-(4-(Difluoromethyl)-2-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2410032-62-9)
- Bortezomib Impurity 10 (CAS CATO-C4X-107210)
- Hepcidin/LEAP-1 (Human); Liver-Expressed Antimicrobial Peptide (CAS 342790-21-0)
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