1,5-Dibromo-2,3-dichlorobenzene CAS 81067-42-7
| CAS No. | 81067-42-7 |
| Molecular Formula | C6H2Br2Cl2 |
| Molecular Weight | 304.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1,5-Dibromo-2,3-dichlorobenzene (CAS 81067-42-7) is a high-purity analytical reference standard with the molecular formula C6H2Br2Cl2 and a molecular weight of 304.79 g/mol.
Structurally, 1,5-Dibromo-2,3-dichlorobenzene (C6H2Br2Cl2) contains 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 304.79 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 1,5-Dibromo-2,3-dichlorobenzene 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.
Physical & Chemical Properties
| Molecular Formula | C6H2Br2Cl2 |
| Molecular Weight | 304.79 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| 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.) | 1980 |
| Halogen Content | Cl/Br-containing |
Related Dibromo Standards
- 1,3-Dibromo-2,4-dichlorobenzene (CAS 100191-19-3)
- 1,4-Dibromo-2,3-dichlorobenzene (CAS 100191-20-6)
- 1,5-Dibromo-2,4-dichlorobenzene (CAS 100191-21-7)
- 1,2-Dibromo-3,6-dichlorobenzene (CAS 100191-22-8)
- 1,2-Dibromo-3,4-dichlorobenzene (CAS 100191-48-8)
- 2,5-Dibromo-1,3-dichlorobenzene (CAS 19393-97-6)
- 1,2-Dibromo-3,5-dichlorobenzene (CAS 81067-40-5)
- 1,2-Dibromo-4,5-dichlorobenzene (CAS 73557-66-1)
Recommended Standards
- 1,4-Dibromo-2,5-dichlorobenzene (CAS 4571-24-8)
- 2-(Benzylamino)-N-(4-chlorophenyl)-2-thioxoacetamide (CAS 380626-11-9)
- 1,3-Dibromo-2,5-dichlorobenzene (CAS 81067-41-6)
- 2-(Chloromethyl)-6-methyl-5-(p-tolyl)thieno[2,3-d]pyrimidin-4(3h)-one (CAS 742120-00-9)
- Nivalenol-13C15 Solution (CAS 911392-40-0)
- 2-(Benzo[d][1,3]dioxol-5-yl)-2-oxoacetaldehyde hydrate (CAS 362609-92-5)
- 4-(Methoxycarbonyl)bicyclo[2.2.2]octane-1-carboxylic Acid (CAS 18720-35-9)
- (1R,2S)-2-(methoxycarbonyl)cyclohexane-1-carboxylic acid (CAS 88335-91-5)
- 4-Amino-6-chloropyridine-3-carbaldehyde, 97% (CAS 1001756-21-3)
- 2-Boronobenzo[b]thiophene-6-carboxylic acid (CAS 946427-46-9)
- 3-Cyclopentyl-7-thiomorpholinopyrimido[4,5-d]pyrimidine-2,4(3H,8H)-dione (CAS 1396876-33-7)
- Naphtho[2,1-b]furan (CAS 232-95-1)
- Dipentyl(phenyl)phosphine (CAS 71501-08-1)
- (Glu1)-Fibrinopeptide B (human) (CAS 103213-49-6)
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