Flupirtine Impurity D CAS 736866-91-4
| CAS No. | 736866-91-4 |
| Molecular Formula | C15H18N4O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 402.41 g/mol gives Flupirtine Impurity D distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Flupirtine Impurity D (CAS 736866-91-4), a certified reference material (molecular formula C15H18N4O2C4H4O4, MW 402.41 g/mol) for analytical method development and quality control.
Flupirtine Impurity D (C15H18N4O2C4H4O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Flupirtine Impurity D under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H18N4O2 C4H4O4 |
| Molecular Weight | 402.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 4 |
Related Flupirtine Standards
- Flupirtine-N6-β-D-Glucuronide (CAS 1147289-72-2)
- Flupirtine-N2-β-D-Glucuronide (CAS 1147289-74-4)
- Flupirtine-D4 Hydrochloride (CAS 1324717-75-0)
- Flupirtine Impurity 8 (CAS 140-75-0)
- Flupirtine Impurity 1 (CAS 1417916-52-9)
- Flupirtine Impurity 4 (CAS 1506942-35-3)
- Flupirtine Impurity 5 (CAS 1552323-75-7)
- Flupirtine Impurity H (CAS 16013-85-7)
Recommended Standards
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- (S)-1-(2-Methoxypyridin-4-yl)ethanamine dihydrochloride (CAS 2177257-68-8)
- 1-(3-(Difluoromethyl)-2-fluorophenyl)ethan-1-amine hydrochloride (CAS 2803930-57-4)
- Di<I>tert</I>butyldichlorosilane (CAS 18395-90-9)
- Ilaprazole Impurity 122 (CAS CATO-C4X-1130122)
- 2-(Cyclopropylamino)-4-(4-ethoxyphenyl)-4-oxobutanoic acid (CAS 256955-32-5)
- 3-Amino-2-(4-methylpiperidin-1-yl)isonicotinic acid (CAS 1493027-52-3)
- 3-Ethoxy-1,1,5-trimethylcyclohexane (CAS 67583-77-1)
- Cholecystokinin Octapeptide (1-4) (desulfated) (CAS 80790-40-5)
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