4-Chloro-2-fluoro-5-methylbenzaldehyde CAS 177211-30-2
| CAS No. | 177211-30-2 |
| Molecular Formula | C8H6ClFO |
| Molecular Weight | 172.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Chloro-2-fluoro-5-methylbenzaldehyde (CAS 177211-30-2), molecular formula C8H6ClFO and molecular weight 172.58 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system, 4-Chloro-2-fluoro-5-methylbenzaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 172.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a certified reference material (CRM), 4-Chloro-2-fluoro-5-methylbenzaldehyde 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 | C8H6ClFO |
| Molecular Weight | 172.58 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
- 2-(3-Chloro-4-fluorophenyl)oxirane (CAS 1020994-89-1)
- 104451-99-2 2 - Chloro - 6 - fluoro - 3 - methylbenzaldehyde 2-Chloro-6-fluoro-m-tolualdehyde 2-chloro-6-fluoro-3-methyl-benzaldehyde benzaldehyde, 2-chloro-6-fluoro-3-methyl- (CAS 104451-99-2)
- 2-(4-Chloro-2-fluorophenyl)acetaldehyde (CAS 1256479-75-0)
- 2-Chloro-4-fluoro-3-methylbenzaldehyde (CAS 1260764-27-9)
- 2-(4-Chloro-3-fluorophenyl)oxirane (CAS 1340088-22-3)
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Recommended Standards
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