2,3-Difluorobenzaldehyde CAS 2646-91-5
| CAS No. | 2646-91-5 |
| Molecular Formula | C7H4F2O |
| Molecular Weight | 142.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2,3-Difluorobenzaldehyde.
2,3-Difluorobenzaldehyde (CAS 2646-91-5) is a high-purity analytical reference standard with the molecular formula C7H4F2O and a molecular weight of 142.10 g/mol.
Based on its molecular formula C7H4F2O, 2,3-Difluorobenzaldehyde contains 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 142.10 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.
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), 2,3-Difluorobenzaldehyde 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 | C7H4F2O |
| Molecular Weight | 142.10 g/mol |
| 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.) | 1957 |
| Halogen Content | F-containing |
Related Difluorobenzaldehyde Standards
- 2,4-Difluorobenzaldehyde (CAS 1550-35-2)
- 2,5 - Difluorobenzaldehyde 2,5-Difluoro-benzaldehyde 2,5-difluorobenzalde 2,5-difluorobenzaldehyde 2,5-difluorobenzaldehyde 98% 2,5-difluorobenzaldehyde 99+% 2,5-difluorobenzaldehyde98% 2,5-fluorobenzaldehyde 2646-90-4 difluorobenzaldehyde timtec-bb sbb006570 (CAS 2646-90-4)
- 3,5-Difluorobenzaldehyde 32085-88-4 AS01455 BENZALDEHYDE, 3,5-DIFLUORO- (CAS 32085-88-4)
- 2,6-difluorobenzaldehyde oxime (CAS 19064-16-5)
- (E)-2,4-difluorobenzaldehyde oxime (CAS 247092-11-1)
- 3,5-Difluorobenzaldehyde oxime (CAS 677728-83-5)
- 4-Ethyl-2,3-difluorobenzaldehyde (CAS 1781592-05-9)
- 2-Ethyl-3,5-difluorobenzaldehyde (CAS 2090129-28-3)
Recommended Standards
- 4-Fluorobenzoyl fluoride (CAS 1583-56-8)
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- 4-Nitrodiphenylamine (CAS 836-30-6)
- 4-Hydroxy-2,2,6,6-tetramethyl-1-piperidinyloxy (CAS 2226-96-2)
- alpha-Ethoxyphenylacetic Acid (CAS 33224-99-6)
- 1,1,1-Trifluoro-3-(3-fluorophenyl)propan-2-amine (CAS 1599349-68-4)
- 1-(Ethylamino)cyclopentanemethanol (CAS 852108-25-9)
- rac-(1R,6R)-6-(trifluoromethyl)cyclohex-3-en-1-amine hydrochloride (CAS 2059917-71-2)
- 2,4-difluoro-5-methyl-benzenesulfonyl chloride (CAS 1235407-51-8)
- 4-(3-Methylbutanoyl)-N-[(thiophen-2-yl)methyl]-1H-pyrrole-2-carboxamide (CAS 478259-27-7)
- Tetracycline impurity 5 (CAS CATO-C4X-23315)
- Insulin Degludec Impurity 1 (CAS 843666-26-2)
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