3,5-Difluoro-4-methoxybenzaldehyde CAS 654-11-5
| CAS No. | 654-11-5 |
| Molecular Formula | C8H6F2O2 |
| Molecular Weight | 172.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H6F2O2, 3,5-Difluoro-4-methoxybenzaldehyde contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 172.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
3,5-Difluoro-4-methoxybenzaldehyde (CAS 654-11-5) is a high-purity analytical reference standard with the molecular formula C8H6F2O2 and a molecular weight of 172.13 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3,5-Difluoro-4-methoxybenzaldehyde 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 | C8H6F2O2 |
| Molecular Weight | 172.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Difluoro Standards
- 2,3-Difluoro-5-methylbenzoic acid (CAS 1003709-96-3)
- 2,5-Difluoro-3-methylbenzoic acid (CAS 1003710-01-7)
- 3,5-Difluoro-2-methylbenzoic acid (CAS 1003710-06-2)
- 3,4-Difluoro-5-methylbenzoic acid (CAS 1017778-60-7)
- 3,4-Difluoro-2-methoxybenzaldehyde (CAS 1023023-24-6)
- 3,5-Difluoro-4-methylbenzoic acid (CAS 103877-76-5)
- 2,5-Difluoro-4-methylbenzoic Acid (CAS 103877-80-1)
- 2,2-Difluoro-2-(pyridin-2-yl)acetamide (CAS 1064652-41-0)
Recommended Standards
- 3,4-Difluoro-N-hydroxybenzimidamide (CAS 500024-74-8)
- 3,5-Difluorobenzohydrazide (CAS 244022-63-7)
- 3,4-Difluorobenzohydrazide (CAS 229957-07-7)
- 3,5-Difluoro-N'-hydroxybenzimidamide (CAS 874880-59-8)
- N-(4-Chlorophenyl)-4-(2,4-dichlorophenoxy)butanamide (CAS 101119-43-1)
- Zotepine N,S-Dioxide (CAS 1514918-29-6)
- 3,5-Dibromo-1-[(2,4,5-trifluorophenyl)methyl]-1h-1,2,4-triazole (CAS 1240571-47-4)
- 2-Cyano-3-(difluoromethyl)-5-ethylbenzoic acid (CAS 1805639-28-4)
- 2-(Phenylamino)pyrimidine-4-carboxylic acid (CAS 1360802-78-3)
- 1-(Furan-2-yl)-2-(piperazin-1-yl)ethan-1-one dihydrochloride (CAS 1306604-95-4)
- N-methyl-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)methanesulfonamide (CAS 1201788-17-1)
- Pinaverium Bromide Impurity 20 (CAS CATO-C4X-246720)
- 6-Bromo-3-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine (CAS 1378877-15-6)
- Staphylococcus Aureus Protein A (SpA)-Derived Peptide (H-2228.0005) (CAS 144979-26-0)
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