4-Bromo-4'-(trans-4-propylcyclohexyl)-1,1'-biphenyl CAS 101532-36-9
| CAS No. | 101532-36-9 |
| Molecular Formula | C21H25Br |
| Molecular Weight | 357.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Bromo-4'-(trans-4-propylcyclohexyl)-1,1'-biphenyl is closely related to bromine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Bromo-4'-(trans-4-propylcyclohexyl)-1,1'-biphenyl (CAS 101532-36-9), molecular formula C21H25Br and molecular weight 357.33 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Bromo-4'-(trans-4-propylcyclohexyl)-1,1'-biphenyl (C21H25Br) contains bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 357.33 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.
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 | C21H25Br |
| Molecular Weight | 357.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Br-containing |
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- Methyl 2-hydroxybut-3-enoate (CAS 5837-73-0)
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- 69407-71-2 A9178 ethyl 1-allyl-4-hydroxy-7-methyl-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxylate ethyl1-allyl-4-hydroxy-7-methyl-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxylate (CAS 69407-71-2)
- tert-Butyl 2-(methylthio)-4-oxo-3,4,5,6,7,9-hexahydro-8H-pyrimido[4,5-c]azepine-8-carboxylate (CAS 2412424-99-6)
- 8-Bromo-4-chromanone (CAS 204377-88-8)
- 1-[4-(2-hydroxyethyl)phenyl]hexahydropyrimidine-2,4-dione (CAS 2758531-98-3)
- 2-((1,1,2,2-Tetrafluoroethoxy)methyl)oxirane (CAS 85567-21-1)
- Semaglutide Impurity 160 (x TFA Salt) (CAS CATO-C4X-2226160)
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