1-Bromo-3-(bromomethyl)-2-chlorobenzene CAS 1044256-89-4
| CAS No. | 1044256-89-4 |
| Molecular Formula | C7H5Br2Cl |
| Molecular Weight | 284.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Bromo-3-(bromomethyl)-2-chlorobenzene.
1-Bromo-3-(bromomethyl)-2-chlorobenzene (CAS 1044256-89-4), molecular formula C7H5Br2Cl and molecular weight 284.38 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-Bromo-3-(bromomethyl)-2-chlorobenzene (C7H5Br2Cl) 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 284.38 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.
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 | C7H5Br2Cl |
| Molecular Weight | 284.38 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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.) | 1988 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- 4-Bromo-2-(bromomethyl)-1-chlorobenzene (CAS 149965-41-3)
- 1-Bromo-2-(bromomethyl)-3-chlorobenzene (CAS 75002-98-1)
- 1-Bromo-3-(bromomethyl)-5-chlorobenzene (CAS 762292-63-7)
- 2-Bromo-1-(bromomethyl)-3-chlorobenzene (CAS 220453-60-1)
- 2-Bromo-4-(bromomethyl)-1-chlorobenzene (CAS 880348-24-3)
- 2-Bromo-4-chlorobenzyl Bromide (CAS 33924-45-7)
- 2-Bromo-5-chlorobenzyl Bromide (CAS 66192-24-3)
- 4-Bromo-1-bromomethyl-2-chlorobenzene (CAS 89720-77-4)
Recommended Standards
- 4-(6-Methoxybenzo[d]thiazol-2-yl)-N,N-dimethylaniline (CAS 10205-71-7)
- n-Benzyl-4-ethoxybenzo[d]thiazol-2(3h)-imine (CAS 1105191-51-2)
- 2,5-Dibromo-1-chloro-3-methylbenzene (CAS 1000573-82-9)
- 1,2-Dibromo-4-chloro-5-methylbenzene (CAS 1160574-04-8)
- 3-Benzyl-3-azabicyclo[3.1.1]Heptane-6-carboxylic acid (CAS 1240562-07-5)
- 2-(Trifluoromethyl)-5,6,7,8-tetrahydro-1,7-naphthyridine hydrochloride (CAS 741737-13-3)
- 3-(5-((3-Bromobenzyl)thio)-4-ethyl-4H-1,2,4-triazol-3-yl)pyridine (CAS 577698-04-5)
- (2R)-8-Methoxy-1,2,3,4-Tetrahydronaphthalene-2-carboxylic acid (CAS 1184173-28-1)
- Homoglutathione (CAS 18710-27-5)
- 2,3-Dinitrophenol (CAS 66-56-8)
- 1-(2,4-difluoro-3-methoxyphenyl)ethan-1-one (CAS 373603-19-1)
- 5-Fluoro-2-phenylsulfonylnitrobenzene (CAS 381666-56-4)
- 2-bromo-4,5-dichlorobenzene-1-sulfonyl chloride (CAS 937625-04-2)
- Tau Peptide (268-282) trifluoroacetate salt (CAS 330456-37-6)
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