4,5-Dichloro-2-fluoro-3-methylbenzaldehyde CAS 2432848-56-9
| CAS No. | 2432848-56-9 |
| Molecular Formula | C8H5Cl2FO |
| Molecular Weight | 207.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 207.03 g/mol gives 4,5-Dichloro-2-fluoro-3-methylbenzaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4,5-Dichloro-2-fluoro-3-methylbenzaldehyde (CAS 2432848-56-9) is a high-purity analytical reference standard with the molecular formula C8H5Cl2FO and a molecular weight of 207.03 g/mol.
Owing to a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system, 4,5-Dichloro-2-fluoro-3-methylbenzaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 207.03 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H5Cl2FO |
| Molecular Weight | 207.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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.) | 2000 |
| Halogen Content | F/Cl-containing |
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Recommended Standards
- 4-(Chloromethyl)-3-Fluorobenzoyl Chloride (CAS 200418-17-3)
- 4-Bromo-1,3-benzenedicarbonitrile (CAS 22433-89-2)
- 3-bromobenzene-1,2-dicarbonitrile (CAS 76241-80-0)
- 4-Bromophthalonitrile (CAS 70484-01-4)
- 2-(4-Isobutyl-4-methyl-2,5-dioxoimidazolidin-1-yl)acetic acid (CAS 1152513-72-8)
- Benzyl 3-(chlorosulfonyl)propanoate (CAS 1394041-79-2)
- n-(3-Chloro-4-methylphenyl)tetrahydro-2h-thiopyran-3-amine (CAS 1341907-20-7)
- (1S,4S)-1-methyl-4-(prop-1-en-2-yl)cyclohex-2-en-1-ol (CAS 425394-92-9)
- 2-Fluoro-4-isothiocyanatopyridine (CAS 1301254-81-8)
- 2,4-Dibromo-6-fluoro-3-hydroxybenzoic acid (CAS 91659-47-1)
- N-(2-(piperidin-4-yl)ethyl)cyclopentanecarboxamide hydrochloride (CAS 1185296-32-5)
- (E)-4-(3-(thiophen-2-yl)acryloyl)phenyl 2,4,6-trimethylbenzenesulfonate (CAS 298217-79-5)
- 1-(5-Chloro-2-ethoxyphenyl)urea (CAS 1706433-69-3)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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