1,4-Bis(chloromethyl)-2,3,5,6-tetrafluorobenzene CAS 131803-37-7
| CAS No. | 131803-37-7 |
| Molecular Formula | C8H4Cl2F4 |
| Molecular Weight | 247.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,4-Bis(chloromethyl)-2,3,5,6-tetrafluorobenzene 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.
CATO supplies 1,4-Bis(chloromethyl)-2,3,5,6-tetrafluorobenzene (CAS 131803-37-7), a certified reference material (molecular formula C8H4Cl2F4, MW 247.02 g/mol) for analytical method development and quality control.
Structurally, 1,4-Bis(chloromethyl)-2,3,5,6-tetrafluorobenzene (C8H4Cl2F4) contains fluorine/chlorine 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 247.02 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H4Cl2F4 |
| Molecular Weight | 247.02 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.) | 1994 |
| Halogen Content | F/Cl-containing |
Related Bis Standards
- (Chloromethyl)methyldiphenylsilane (CAS 18407-40-4)
- 4-(chloromethyl)-2-(2-methoxyphenyl)pyrimidine (CAS 1343346-38-2)
- 1-(Chloromethyl)-2-((o-tolyloxy)methyl)benzene (CAS 156489-68-8)
- α-(Chloromethyl)[1,1'-biphenyl]-4-ethanol (CAS 6732-16-7)
- 4-(chloromethyl)-2-(2,3-dihydro-1-benzofuran-2-yl)pyrimidine (CAS 1558386-32-5)
- 4-(Chloromethyl)benzo[d]oxazole-2-sulfonamide (CAS 1803836-03-4)
- 2-(Chloromethyl)benzo[d]oxazole-6-sulfonamide (CAS 1803884-31-2)
- 2-(Chloromethyl)benzo[d]oxazole-7-sulfonamide (CAS 1804190-99-5)
Recommended Standards
- 5-Fluoro-2-iodobenzonitrile (CAS 877868-92-3)
- (4-((2-Nitro-1H-imidazol-1-yl)methyl)phenyl)boronic acid (CAS 137756-87-7)
- 4,6-Dichloro-N-(2,2,2-trifluoroethyl)-1,3,5-triazin-2-amine (CAS 86298-37-5)
- (2-(Tert-butyl)-5-(trifluoromethyl)pyridin-3-yl)boronic acid (CAS 2225179-92-8)
- 2-(Cyanomethyl)benzo[d]oxazole-6-sulfonyl chloride (CAS 1804080-64-5)
- 2-((3-Fluorobenzyl)sulfonyl)-1-methyl-4,5-diphenyl-1H-imidazole (CAS 338957-03-2)
- (Z)-{2,2,2-trifluoro-1-[1-(4-fluorophenyl)-5-(4-methanesulfonylphenyl)-2-methyl-1H-pyrrol-3-yl]ethylidene}amino 3-methoxybenzoate (CAS 860788-05-2)
- 5-(Difluoromethyl)-2,7-dimethyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine (CAS 1789048-60-7)
- 6-Amino-2-(trifluoromethyl)nicotinaldehyde (CAS 1227582-10-6)
- H-Glu-βNA (CAS 635-86-9)
- 1-(1-Benzylpiperidin-4-yl)methanamine (CAS 88915-26-8)
- 3-Bromofluorobenzene (CAS 1073-06-9)
- Cefotaxime Impurity 38 (CAS CATO-C4X-120138)
- Gly-Neuroendocrine Regulatory Peptide-3 (human, mouse, rat) trifluoroacetate salt (CAS 1815618-19-9)
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