2-Chloro-1,3-difluoro-4-iodobenzene CAS 202925-06-2
| CAS No. | 202925-06-2 |
| Molecular Formula | C6H2ClF2I |
| Molecular Weight | 274.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-1,3-difluoro-4-iodobenzene (CAS 202925-06-2), molecular formula C6H2ClF2I and molecular weight 274.43 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Chloro-1,3-difluoro-4-iodobenzene (C6H2ClF2I) contains fluorine/chlorine/iodine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 274.43 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C6H2ClF2I |
| Molecular Weight | 274.43 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 |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2014 |
| Halogen Content | F/Cl/I-containing |
Related Chloro Standards
- 1-Chloro-2,5-difluoro-4-iodobenzene (CAS 1097871-23-2)
- 1-Chloro-3,4-difluoro-2-iodobenzene (CAS 1208074-94-5)
- 5-Chloro-1,3-difluoro-2-iodobenzene (CAS 1208076-02-1)
- 2-Chloro-1,4-difluoro-3-iodobenzene (CAS 1208077-36-4)
- 2-Chloro-3,4-difluoro-1-iodobenzene (CAS 1208077-87-5)
- 1-Chloro-2,4-difluoro-3-iodobenzene (CAS 1208078-26-5)
- 6-Chloro-2,4-difluoroiodobenzene (CAS 1242339-98-5)
- 1-Chloro-4,5-difluoro-2-iodobenzene (CAS 1261629-20-2)
Recommended Standards
- 1-Chloro-2,4-difluoro-5-iodobenzene (CAS 333447-43-1)
- 2-Chloro-1,5-difluoro-3-iodobenzene (CAS 933585-26-3)
- Trimethyl((2-((tetrahydro-2H-pyran-2-yl)oxy)phenyl)ethynyl)silane (CAS 196106-30-6)
- ethyl 1-(2-trimethylsilylethoxymethyl)imidazole-2-carboxylate (CAS 329984-05-6)
- Pyrimidine-5-carboxylic Acid (CAS 4595-61-3)
- 2-(2H-1,3-Benzodioxol-5-yl)-3-{[2-(2H-1,3-benzodioxol-5-yl)-6-chloroimidazo[1,2-a]pyridin-3-yl]methyl}-6-chloroimidazo[1,2-a]pyridine (CAS 866145-42-8)
- 7-Chloro-4-oxo-1,2,3,4-tetrahydronaphthalen-1-yl pivalate (CAS 804498-94-0)
- Methyl 2-(2-methoxyphenyl)acrylate (CAS 54493-88-8)
- (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid (CAS 108646-25-9)
- 3-(4-Bromo-1h-pyrazol-1-yl)-2-(cyclopropylamino)-2-methylpropanamide (CAS 1248736-41-5)
- 2-(2-(Trifluoromethyl)phenyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyrimidine (CAS 1799420-85-1)
- 2-(4-Fluorophenyl)-5-methylthiazole-4-carboxylic acid (CAS 334017-74-2)
- 2-(5-Chloro-thiophen-2-yl)-quinoline-4-carboxylic acid (CAS 329222-93-7)
- Semaglutide impurity 272 (CAS CATO-C4X-2226272)
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