2-(2-Chloroethyl)-1,3-difluorobenzene CAS 959232-39-4
| CAS No. | 959232-39-4 |
| Molecular Formula | C8H7ClF2 |
| Molecular Weight | 176.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(2-Chloroethyl)-1,3-difluorobenzene 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.
2-(2-Chloroethyl)-1,3-difluorobenzene (CAS 959232-39-4), molecular formula C8H7ClF2 and molecular weight 176.59 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to fluorine/chlorine substitution, an aromatic ring system, 2-(2-Chloroethyl)-1,3-difluorobenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 176.59 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).
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.
Physical & Chemical Properties
| Molecular Formula | C8H7ClF2 |
| Molecular Weight | 176.59 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 |
| 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.) | 1987 |
| Halogen Content | F/Cl-containing |
Related Chloroethyl Standards
- 1-(2-Chloroethyl)-2,4-difluorobenzene (CAS 119779-13-4)
- 4-(1-chloroethyl)-1,2-difluorobenzene (CAS 221031-54-5)
- 3-(2-chloroethyl)-1-methylimidazolidine-2,4-dione (CAS 1152519-18-0)
- 5-(1-chloroethyl)-3-(methoxymethyl)-1,2,4-oxadiazole (CAS 1250158-52-1)
- 3-(2-Chloroethyl)-5-(methoxymethyl)-1,2,4-oxadiazole (CAS 1824274-24-9)
- 3-(2-chloroethyl)-5-methylimidazolidine-2,4-dione (CAS 1909305-48-1)
- n-(2-Chloroethyl)pyrrolidine-1-carboxamide (CAS 1495150-98-5)
- 2-Chloroethyl 2,2,2-trifluoroacetate (CAS 40949-99-3)
Recommended Standards
- 1-Chloro-4-(1,1-difluoroethyl)benzene (CAS 55805-04-4)
- 2-(Chloromethyl)-1,3-difluoro-4-methylbenzene (CAS 647037-11-4)
- 1-(1-Chloro-2,2-difluoroethyl)benzene (CAS 345-62-0)
- (2-Chloro-1,1-difluoroethyl)benzene (CAS 55805-08-8)
- 4-(azidomethyl)-3-fluorobenzonitrile (CAS 368426-24-8)
- 3-iodo-4-nitro-1H-pyrrolo[2,3-b]pyridine (CAS 1000340-40-8)
- 2-Bromo-4-(1,1-dimethylethyl)-5-nitrophenyl Methyl Ester Carbonic Acid (CAS 1233530-92-1)
- Phytomenadione/Vitamin K1 Impurity 114 (CAS CATO-C4X-2207114)
- tert-Butyl 3-butoxyazetidine-1-carboxylate (CAS 1314987-89-7)
- 3-Ethylisoxazol-4-amine (CAS 1502266-37-6)
- (R)-1-(2,4-dimethylbenzyl)pyrrolidin-3-amine (CAS 730241-93-7)
- 1,2,3,4,5,6,7,8-Octahydro-8,8-dimethyl-2,naphthaldehyde (CAS 68991-97-9)
- 4-Hydrazino-N-(4-iodophenyl)-4-oxobutanamide (CAS 443863-27-2)
- Semaglutide Impurity 123 (CAS 71997-93-8)
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