Stiripentol impurity 3 CAS 144850-45-3
| CAS No. | 144850-45-3 |
| Molecular Formula | C14H16O3 |
| Molecular Weight | 232.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Stiripentol impurity 3 (CAS 144850-45-3) is a certified pharmaceutical impurity reference standard with the molecular formula C14H16O3 and a molecular weight of 232.28 g/mol.
Stiripentol impurity 3 (C14H16O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C14H16O3 |
| Molecular Weight | 232.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
Related Stiripentol Standards
- Stiripentol Iso Butyl Keto Impurity (CAS 56750-95-9)
- Stiripentol Impurity 12 (CAS CATO-C4X-322912)
- Stiripentol (CAS 137767-55-6)
- (R)-Stiripentol (CAS 144017-65-2)
- (S)-Stiripentol (CAS 144017-66-3)
- Stiripentol Impurity N (CAS 78074-39-2)
- Stiripentol Iso Butyl Alcohol Impurity (CAS 58344-90-4)
- Stiripentol impurity 1 (CAS CATO-C4X-32291)
Recommended Standards
- Melatonin (CAS 73-31-4)
- Deucravacitinib Impurity 4 (CAS CATO-C4X-31384)
- 9-Nitroanthracene-d9 (CAS 220381-38-4)
- Ramelteon Impurity 34 (CAS 1356395-13-5)
- Ulipristal Impurity 11 (CAS CATO-C4X-191511)
- Baloxavir Marboxil Impurity 192 (CAS CATO-C4X-2108192)
- Roflumilast Impurity 4 (CAS 162401-30-1)
- trans-4-Fluoropyrrolidin-3-ol (CAS 1334320-82-9)
- (S)-2-Amino-3-(2H-tetrazol-2-yl)propanoic acid (CAS 405150-16-5)
- 4-(Fluoromethyl)benzo[d]oxazole-2-thiol (CAS 1803814-74-5)
- 2-(2,2-Difluorobenzo[d][1,3]dioxole-5-sulfonamido)acetic acid (CAS 1707579-28-9)
- 4-(Benzyloxy)-2-fluorophenol (CAS 84352-10-3)
- 2,5-dioxopyrrolidin-1-yl 4-[(2-{[(2S)-1-{[(1S,2R,3S,5S,6S,16Z,18Z,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.1¹⁰,¹⁴.0³,⁵]hexacosa-10,12,14(26),16,18-pentaen-6-yl]oxy}-1-oxopropan-2-yl](methyl)carbamoyl}ethyl)disulfanyl]pentanoate (CAS 452072-20-7)
- Lixisenatide (CAS 320367-13-3)
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