1,4-Bis(bromomethyl)benzene CAS 623-24-5
| CAS No. | 623-24-5 |
| Molecular Formula | C8H8Br2 |
| Molecular Weight | 263.96 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 1,4-Bis(bromomethyl)benzene.
1,4-Bis(bromomethyl)benzene (CAS 623-24-5), molecular formula C8H8Br2 and molecular weight 263.96 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,4-Bis(bromomethyl)benzene (C8H8Br2) contains 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 263.96 g/mol, it falls into the medium-molecular-weight range. 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 | C8H8Br2 |
| Molecular Weight | 263.96 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.) | 1957 |
| Halogen Content | Br-containing |
Related Bis Standards
- 2-(Bromomethyl)-5-(trifluoromethyl)benzonitrile (CAS 1426933-69-8)
- 2-(Bromomethyl)-6-(trifluoromethyl)benzonitrile (CAS 1498300-45-0)
- 2-(Bromomethyl)-3-(trifluoromethyl)benzonitrile (CAS 1803781-90-9)
- 3-(Bromomethyl)-5-(trifluoromethyl)benzonitrile (CAS 669080-79-9)
- 4-(Bromomethyl)-3-(trifluoromethyl)benzonitrile (CAS 853368-32-8)
- 1-(Bromomethyl)-4-fluoro-5-methoxy-2-nitrobenzene (CAS 1342850-43-4)
- 2-(Bromomethyl)-4-fluoro-5-nitroanisole (CAS 2006278-10-8)
- 5-(Bromomethyl)-[3,4'-bipyridin]-6-amine (CAS 1227589-62-9)
Recommended Standards
- Alpha,Alpha＇-Dibromo-M-Xylene (CAS 626-15-3)
- 73852-19-4 3,5-Bis-trifluoromethylphenylboronic acid Boronic acid, (3,5-bis(trifluoromethyl)phenyl)- (3,5-Bis(trifluoromethyl)phenyl)boronic acid Btfpba (CAS 73852-19-4)
- Avatrombopag Impurity 114 (CAS CATO-C4X-2234114)
- Permethrin Impurity 3 (CAS 68697-08-5)
- 3-(Bromomethyl)-2-fluoropyridine (CAS 30412-42-1)
- 3-(3-Methoxyphenyl)-N-(4-methoxyphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-52-8)
- Bromo(methanesulfonyl)methane (CAS 78967-61-0)
- 8-(4-Fluorophenyl)-1,4-dioxaspiro[4.5]decane (CAS 80912-56-7)
- 2-[(4-tert-butylphenyl)formamido]propanoic acid (CAS 726174-56-7)
- 4-(Pyridine-2-amido)benzoic acid (CAS 5693-36-7)
- BLU-945 (CAS 2660250-10-0)
- N-Methylindoline-2-carboxamide (CAS 77920-71-9)
- 4-Fluoro-1h-indole-2-carbaldehyde (CAS 933707-57-4)
- Des-Pro-Pro-Tirzepatide (CAS CATO-CPTD788696)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com