3',4'-Difluoro-[1,1'-biphenyl]-2-carbaldehyde CAS 1183570-76-4
| CAS No. | 1183570-76-4 |
| Molecular Formula | C13H8F2O |
| Molecular Weight | 218.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3',4'-Difluoro-[1,1'-biphenyl]-2-carbaldehyde (CAS 1183570-76-4), molecular formula C13H8F2O and molecular weight 218.20 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3',4'-Difluoro-[1,1'-biphenyl]-2-carbaldehyde (C13H8F2O) contains a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 218.20 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 3',4'-Difluoro-[1,1'-biphenyl]-2-carbaldehyde 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 | C13H8F2O |
| Molecular Weight | 218.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
Related Difluoro Standards
- 4',6-Difluoro-[1,1'-biphenyl]-3-carbaldehyde (CAS 1176629-59-6)
- 2',5'-Difluoro-[1,1'-biphenyl]-2-carbaldehyde (CAS 1178736-69-0)
- 4,4'-Difluoro-[1,1'-biphenyl]-3-carbaldehyde (CAS 1183780-71-3)
- 2,3'-Difluoro-[1,1'-biphenyl]-4-carbaldehyde (CAS 1214339-63-5)
- 4,4'-Difluoro-[1,1'-biphenyl]-2-carbaldehyde (CAS 1214374-20-5)
- 2,2'-Difluoro-[1,1'-biphenyl]-3-carbaldehyde (CAS 1214380-81-0)
- 2',3'-Difluoro-[1,1'-biphenyl]-4-carbaldehyde (CAS 126163-38-0)
- 3',4'-Difluoro-[1,1'-biphenyl]-4-carbaldehyde (CAS 135862-45-2)
Recommended Standards
- 2-(2,4-Difluorophenyl)benzaldehyde (CAS 1183323-64-9)
- 2-Fluoro-3-methanesulfonylbenzoic acid (CAS 1186663-47-7)
- 4-Methyl-6-((trifluoromethyl)thio)nicotinonitrile (CAS 1204234-83-2)
- 2-(2-fluorobenZenesulfonyl)acetic acid (CAS 1152523-46-0)
- Methyl 4-thiocyanatobutanoate (CAS 79203-77-3)
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- N-Desacetyl 5-Azido OseltaMivir (CAS 204255-04-9)
- N-(1H-Indazol-4-yl)-2-thiophenesulfonamide (CAS 685108-44-5)
- (Z)-3-amino-3-[4-(4-chloro-3-fluorophenoxy)phenyl]-2-propenenitrile (CAS 478081-39-9)
- 3-Fluoro-4-(pyrrolidin-2-yl)pyridine (CAS 1270491-52-5)
- 1-Chloro-2-methylnonane (CAS 1490133-47-5)
- 2-{4-[(2-carbamoylethyl)sulfanyl]phenyl}acetic acid (CAS 1456695-08-1)
- 1H,1H,2H,2H-Perfluorododecyltrichlorosilane (CAS 102488-49-3)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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