Flunarizine impurity 47 CAS 2602342-57-2
| CAS No. | 2602342-57-2 |
| Molecular Formula | C9H9ClO |
| Molecular Weight | 168.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Flunarizine impurity 47 (CAS 2602342-57-2), a pharmacopoeial impurity reference standard (molecular formula C9H9ClO, MW 168.62 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Flunarizine impurity 47 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 168.62 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), Flunarizine impurity 47 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 | C9H9ClO |
| Molecular Weight | 168.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | Cl-containing |
Related Flunarizine Standards
- Flunarizine impurity 45 (CAS 3141-41-1)
- Flunarizine Impurity 19 (CAS 18903-04-3)
- Flunarizine Impurity 29 (CAS 39199-93-4)
- Flunarizine impurity 47 (CAS 148728-47-6)
- Flunarizine Impurity 25 (CAS 365-22-0)
- Flunarizine Impurity 59 (CAS 114312-65-1)
- Flunarizine Impurity 9 (CAS 87179-40-6)
- Flunarizine Impurity 27 (CAS 4510-34-3)
Recommended Standards
- Bupropion Impurity 48 (CAS 34841-35-5)
- Methoxyphenamine impurity 6 (CAS 6305-95-9)
- 3-Chloropropiophenone (CAS 936-59-4)
- Opicapone impurity 34 (CAS CATO-C4X-240434)
- Nintedanib Impurity 65 (CAS 757218-01-2)
- Carbidopa Impurity 31 (CAS 28860-96-0)
- Tiamulin impurity 13 (CAS 1061337-55-0)
- N4-(2,4-Difluorophenyl)-N2-isobutyl-L-asparagine (CAS 1048010-11-2)
- 5-(Tetrahydro-2H-pyran-4-yl)picolinaldehyde (CAS 2766303-00-6)
- Ethyl 4-(3,4-dichlorophenyl)-2,4-dioxobutanoate (CAS 93618-67-8)
- 6-Fluoro-3-isobutyl-1h-indole (CAS 1002332-01-5)
- Diethyl 2-((p-tolylamino)methylene)malonate (CAS 19056-84-9)
- 4-Methoxy-3-nitrobenzotrifluoride (CAS 394-25-2)
- (Ser(PO3H2)202,Thr(PO3H2)205)-Tau Peptide (194-213) trifluoroacetate salt (CAS 2022956-55-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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