1,4-Dibromobenzene-d4 CAS 4165-56-4
| CAS No. | 4165-56-4 |
| Molecular Formula | - |
| Molecular Weight | 239.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,4-Dibromobenzene-d4 (CAS 4165-56-4) is a high-purity analytical reference standard with the molecular formula C6D4Br2 and a molecular weight of 239.93 g/mol.
1,4-Dibromobenzene-d4 (C6D4Br2) contains deuterium isotope labeling, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1,4-Dibromobenzene-d4 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6D4Br2 |
| Molecular Weight | 239.93 g/mol |
| Appearance | Off-white to pale 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 methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
Related Dibromobenzene Standards
- 1,4-Dibromobenzene- (CAS 19936-78-8)
- 1,2-Dibromobenzene (CAS 583-53-9)
- 1,4-Dibromobenzene (CAS 106-37-6)
- 2,5-Dibromobenzene-1,4-diamine (CAS 25462-61-7)
- 4,5-Dibromobenzene-1,2-diamine (CAS 49764-63-8)
- 4,6-Dibromobenzene-1,3-diamine (CAS 36210-57-8)
- 3,5-Dibromobenzene-1,2-diol (CAS 111167-61-4)
- 3,6-Dibromobenzene-1,2-diol (CAS 123433-20-5)
Recommended Standards
- Vilanterol Impurity 79 (CAS CATO-C4X-193579)
- 1,6-Dibromo-cyclohexene (CAS 17202-32-3)
- 5-Bromo-2-chlorobenzyl Chloride (CAS 928758-19-4)
- (2E,4E)-1,6-Dibromohexa-2,4-diene, E (CAS 63621-95-4)
- Methyl 3,3-dimethylaziridine-2-carboxylate (CAS 178925-39-8)
- Glutathione-diethyl ester (reduced) HCL (CAS 97451-40-6（free base）)
- 1-(4-(4-Bromo-3,5-dimethyl-1H-pyrazol-1-yl)phenyl)ethanone (CAS 1187385-98-3)
- 2,2,2-trifluoroethyl N-(5-methylthiophen-2-yl)carbamate (CAS 1354954-00-9)
- 6-(4-Isopropoxyphenyl)-6-oxohexanoic acid (CAS 898791-88-3)
- 1-(5-Ethynyl-2-hydroxyphenyl)ethanone (CAS 1350803-03-0)
- 3-Bromo-2,4-dimethylbenzoic acid (CAS 1255206-85-9)
- 1H-Fluorene (CAS 244-36-0)
- 2-Clenbuterol Glucose (CAS CATO-C4X-199315)
- Insulin Degludec Impurity 19 (CAS CATO-C4X-215719)
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