4'-Bromo-5-chloro-2-methyl-1,1'-biphenyl CAS 1443352-45-1
| CAS No. | 1443352-45-1 |
| Molecular Formula | C13H10BrCl |
| Molecular Weight | 281.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4'-Bromo-5-chloro-2-methyl-1,1'-biphenyl is closely related to chlorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4'-Bromo-5-chloro-2-methyl-1,1'-biphenyl (CAS 1443352-45-1), a certified reference material (molecular formula C13H10BrCl, MW 281.58 g/mol) for analytical method development and quality control.
Structurally, 4'-Bromo-5-chloro-2-methyl-1,1'-biphenyl (C13H10BrCl) contains chlorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 281.58 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C13H10BrCl |
| Molecular Weight | 281.58 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- 1-Bromo-5-(4-chlorophenyl)-2-methylbenzene (CAS 1033760-75-6)
- 3'-Bromo-3-chloro-2-methyl-1,1'-biphenyl (CAS 1443328-13-9)
- 3'-Bromo-5-chloro-2-methyl-1,1'-biphenyl (CAS 1443328-14-0)
- 4'-Bromo-3-chloro-4-methyl-1,1'-biphenyl (CAS 1443328-25-3)
- 3'-Bromo-3-chloro-4-methyl-1,1'-biphenyl (CAS 1443351-95-8)
- 4'-Bromo-3-chloro-2-methyl-1,1'-biphenyl (CAS 1443352-49-5)
- 1-(Bromo(phenyl)methyl)-2-chlorobenzene (CAS 75341-34-3)
- 7-bromo-2-(chloromethyl)-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 442531-33-1)
Recommended Standards
- Heptamethylcyclotetrasiloxane (CAS 15721-05-8)
- 1-(Bromomethyl)-3-(2-chlorophenyl)benzene (CAS 83169-85-1)
- 3-(Bromomethyl)-2-chloro-1,1′-biphenyl (CAS 82617-46-7)
- tert-Butyl 2,4,5-trichlorobenzoate (CAS 208512-53-2)
- 1-Phenoxycyclopropane-1-carboxylic acid (CAS 90843-58-6)
- 2-(4-Chlorobenzoyl)-4-methylpyridine (CAS 1187165-34-9)
- Ethyl 3-cyano-1-methylcyclobutane-1-carboxylate (CAS 1882089-51-1)
- 4-(Trifluoromethoxy)isoquinoline (CAS 1261753-65-4)
- 3-Ethyl-2-(4-methylbenzyl)pyrrolidine (CAS 525537-26-2)
- 2-[3-(1H-Pyrrol-1-yl)thiophen-2-yl]-5-({[3-(trifluoromethyl)phenyl]methyl}sulfanyl)-1,3,4-oxadiazole (CAS 478077-33-7)
- 4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-carbaldehyde O-(2,4-dichlorobenzyl)oxime (CAS 477868-26-1)
- 2-Methoxy-1-methyl-1H-indole-3-carbaldehyde (CAS 103986-04-5)
- 7-Bromo-1-methyl-2,3-dihydro-1H-indol-2-one (CAS 100831-25-2)
- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
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