1,4-Dichloro-2,3-difluorobenzene CAS 36556-38-4
| CAS No. | 36556-38-4 |
| Molecular Formula | C6H2Cl2F2 |
| Molecular Weight | 182.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 182.98 g/mol gives 1,4-Dichloro-2,3-difluorobenzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1,4-Dichloro-2,3-difluorobenzene (CAS 36556-38-4), a certified reference material (molecular formula C6H2Cl2F2, MW 182.98 g/mol) for analytical method development and quality control.
Owing to fluorine/chlorine substitution, an aromatic ring system, 1,4-Dichloro-2,3-difluorobenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 182.98 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).
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 | C6H2Cl2F2 |
| Molecular Weight | 182.98 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.) | 1967 |
| Halogen Content | F/Cl-containing |
Related Dichloro Standards
- 1,2-Dichloro-4,5-difluorobenzene (CAS 152422-08-7)
- 1,2-Dichloro-3,5-difluorobenzene (CAS 36556-58-8)
- 1,2-Dichloro-3,6-difluorobenzene (CAS 36556-54-4)
- 1,3-Dichloro-2,4-difluorobenzene (CAS 36556-37-3)
- 1,3-Dichloro-2,5-difluorobenzene (CAS 2367-80-8)
- 1,4-Dichloro-2,5-difluorobenzene (CAS 400-05-5)
- 1,4-Dichloro-2,6-difluorobenzene (CAS 36611-27-5)
- 1,5-Dichloro-2,4-difluorobenzene (CAS 2253-30-7)
Recommended Standards
- 3-(Dimethylamino)-4-fluorophenylboronic Acid (CAS 1186215-34-8)
- (Z)-4-Bromo-2-fluorobut-2-enoic acid (CAS 2858645-90-4)
- 3-iodoazetidine (CAS 1193403-40-5)
- 3-Fluoro-4-((methylamino)methyl)phenylboronic acid (CAS 1704064-02-7)
- 7-(1-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)thio)ethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 303151-82-8)
- (4-Nitrobenzofuran-2-yl)methanamine (CAS 1531247-48-9)
- Ethyl (S)-4-(1-hydroxyethyl)benzoate (CAS 134615-20-6)
- 2-Bromo-4-fluoro-N-(3-methyl-1,2,4-oxadiazol-5-yl)benzamide (CAS 1258773-84-0)
- Tert-butyl 1-{[(benzyloxy)carbonyl]amino}-5-azaspiro[2.3]hexane-5-carboxylate (CAS 1251012-85-7)
- 2-(3-Cyclopropyl-1-methyl-1h-1,2,4-triazol-5-yl)propan-1-amine (CAS 1342627-04-6)
- 1-Cyclopropylbut-3-en-1-ol (CAS 106434-96-2)
- 2-(3-aminooxolan-3-yl)acetic acid (CAS 1341575-20-9)
- 4-Fluoro-1,3-dimethyl-1H-pyrazol-5-ol (CAS 80171-20-6)
- Bax inhibitor peptide V5 (CAS 579492-81-2)
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