2,7-Bis(bromomethyl)pyrene CAS 63996-39-4
| CAS No. | 63996-39-4 |
| Molecular Formula | C18H12Br2 |
| Molecular Weight | 388.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,7-Bis(bromomethyl)pyrene is closely related to bromine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2,7-Bis(bromomethyl)pyrene (CAS 63996-39-4), a certified reference material (molecular formula C18H12Br2, MW 388.10 g/mol) for analytical method development and quality control.
The molecular framework of 2,7-Bis(bromomethyl)pyrene (C18H12Br2) is characterized by bromine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C18H12Br2 |
| Molecular Weight | 388.10 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 |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
Related Bis Standards
- Ethyl 5-(bromomethyl)-2-(4-bromophenyl)oxazole-4-carboxylate (CAS 80022-52-2)
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- 2-(Bromomethyl)-6-(difluoromethyl)-5-iodopyridine-3-acetonitrile (CAS 1804868-12-9)
- 2-(4-(Bromomethyl)-3-(difluoromethyl)-5-iodopyridin-2-yl)acetonitrile (CAS 1805432-36-3)
- 2-(Bromomethyl)-6-(difluoromethyl)-3-iodopyridine-5-acetonitrile (CAS 1805458-40-5)
- 2-(Bromomethyl)-6-(difluoromethyl)-3-iodopyridine-4-acetonitrile (CAS 1806022-96-7)
- 5-(Bromomethyl)-1,3,4-triphenyl-1H-pyrazole (CAS 85720-74-7)
- Methyl 4-(Bromomethyl)-3,5-dibromobenzoate (CAS 444663-80-3)
Recommended Standards
- 4,4’’-Dibromo-p-terphenyl (CAS 17788-94-2)
- 3,3''-Dibromo-1,1':2',1''-terphenyl (CAS 95918-90-4)
- 2',5'-Dibromo-1,1':4',1''-terphenyl (CAS 1293386-03-4)
- 3,3''-Dibromo-1,1':3',1''-terphenyl (CAS 95962-62-2)
- 1-(5,6-dimethylpyridazin-4-yl)methanamine (CAS 1804129-79-0)
- (2,3-Dimethyl-2H-indazol-6-yl)methanamine (CAS 1234616-52-4)
- 2-Methoxy-4-(trifluoromethoxy)benzenesulfonyl chloride (CAS 905077-08-9)
- (3',4',5'-Trifluoro-[1,1'-biphenyl]-4-yl)boronic acid (CAS 1236159-62-8)
- 1,4-Benzenedicarboxylic acid, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol and 1,2-ethanediol, octadecanoate (CAS 71839-46-8)
- 8-chloro-3-(trifluoromethyl)imidazo[1,5-a]pyrazine (CAS 2306263-43-2)
- 4-methanesulfonylbenzene-1-sulfonamide (CAS 667-24-3)
- 1-Methyl-1H-benzo[d][1,2,3]triazole-6-carbonitrile (CAS 864274-02-2)
- 6-bromo-7-methoxy-1H-indole (CAS 938061-65-5)
- Tirzepatide Impurity 10 (CAS CATO-C4X-324010)
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