3-Bromo-1,2-dichloro-5-fluoro-4-methylbenzene CAS 1373253-12-3
| CAS No. | 1373253-12-3 |
| Molecular Formula | C7H4BrCl2F |
| Molecular Weight | 257.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Bromo-1,2-dichloro-5-fluoro-4-methylbenzene 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.
3-Bromo-1,2-dichloro-5-fluoro-4-methylbenzene (CAS 1373253-12-3) is a high-purity analytical reference standard with the molecular formula C7H4BrCl2F and a molecular weight of 257.92 g/mol.
Structurally, 3-Bromo-1,2-dichloro-5-fluoro-4-methylbenzene (C7H4BrCl2F) contains fluorine/chlorine/bromine 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 257.92 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C7H4BrCl2F |
| Molecular Weight | 257.92 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.) | 1991 |
| Halogen Content | F/Cl/Br-containing |
Related Bromo Standards
- 1-Bromo-3-(dichloromethyl)-5-fluorobenzene (CAS 1000339-58-1)
- 5-Bromo-1-chloro-2-(chloromethyl)-3-fluorobenzene (CAS 1823959-64-3)
- (2-Bromo-6-(sec-butyl)pyridin-4-yl)boronic acid (CAS 2225152-29-2)
- (2-Bromo-6-isobutylpyridin-4-yl)boronic acid (CAS 2225173-97-5)
- (5-Bromo-2-(tert-butyl)pyridin-3-yl)boronic acid (CAS 2225181-37-1)
- 1-Bromo-2-chloro-3-(chloromethyl)-5-fluorobenzene (CAS 2092416-79-8)
- 2-Bromo-5-(bromomethyl)-1,3,4-thiadiazole (CAS 1454906-50-3)
- 2-Bromo-4,5-dichloro-1-propyl-1H-imidazole (CAS 140187-05-9)
Recommended Standards
- 3,5-Dichloro-4-fluorobenzyl bromide (CAS 1803725-04-3)
- 2,2-Dibromo-1-methylcyclopropane-1-carboxylic acid (CAS 5365-21-9)
- 2,5-Dichloro-3-fluorobenzyl bromide (CAS 1803784-30-6)
- 1,5-Dibromo-2,4-pentanedione (CAS 68864-57-3)
- 5,5',5''-(Methylsilanetriyl)triisophthalic acid (CAS 2066572-56-1)
- N-((1H-benzo[d][1,2,3]triazol-1-yl)(phenyl)methyl)benzamide (CAS 117067-48-8)
- 6-Amino-2-(propylthio)pyrimidin-4-ol (CAS 2917-02-4)
- 3-Chloro-1-cyclopropyl-6,7-dihydro-5H-cyclopenta[c]pyridine-4-carbonitrile (CAS 1774903-78-4)
- N-(3-(3-(4-Fluorophenyl)-6-oxopyridazin-1(6H)-yl)propyl)-2-(thiophen-2-yl)acetamide (CAS 1021225-04-6)
- Mirogabalin Impurity 21 Benzenesulfonic Acid (CAS CATO-C4X-292421)
- 1-Bromo-3-(2-chloroethyl)benzene (CAS 98545-55-2)
- 2-(Methylsulfonamido)phenylacetonitrile (CAS 36268-70-9)
- 6-Hydroxy-2-oxo-1-phenyl-N-[4-(trifluoromethoxy)phenyl]-1,2-dihydropyrimidine-4-carboxamide (CAS 861212-13-7)
- Semaglutide impurity 97 (CAS CATO-C4X-222697)
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