1,4-Dibromo-2-butene CAS 6974-12-5
| CAS No. | 6974-12-5 |
| Molecular Formula | C4H6Br2 |
| Molecular Weight | 213.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 1,4-Dibromo-2-butene (CAS 6974-12-5), a certified reference material (molecular formula C4H6Br2, MW 213.90 g/mol) for analytical method development and quality control.
Owing to bromine substitution, 1,4-Dibromo-2-butene is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 213.90 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C4H6Br2 |
| Molecular Weight | 213.90 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- (2Z)-1,3-Dibromo-2-butene (CAS 86365-84-6)
- 1,3-Dibromo-2-methylpropene (E/Z Mixture) (CAS 35911-17-2)
- 1,3-Dibromo-2-propanone-13C 1,3-Dibromoacetone-2-13C 1190006-20-2 Bis(bromomethyl) Ketone-13C NSC 249810-13C (CAS 1190006-20-2)
- 2,3-Dibromo-2-propen-1-ol (CAS 7228-11-7)
- 2,3-Dibromo-Propanal (CAS 5221-17-0)
- 1,3-Dibromo-2-methylpropane (CAS 28148-04-1)
- 1,3-Dibromo-2-propanol (stabilized with Copper chip) (CAS 96-21-9)
- 2,3-Dibromo-1-propanol (CAS 96-13-9)
Recommended Standards
- 1,4-Dibromobutene (CAS 30794-77-5)
- 1-bromo-1-(bromomethyl)cyclopropane (CAS 33742-80-2)
- 3-Bromo-2-(bromomethyl)-1-propene (CAS 15378-31-1)
- 2,4-Dibromobut-1-ene (CAS 55030-57-4)
- (αR)-α-Amino-2,3-dihydro-4-methoxy-7-nitro-γ-oxo-1H-Indole-1-butanoic Acid (CAS 845555-94-4)
- 2-Bromo-7-methyl-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one (CAS 139535-51-6)
- N-(4-fluorophenyl)-1-(4-nitrobenzyl)-1H-imidazole-4-carboxamide (CAS 1351804-44-8)
- 88847-11-4 1,2,4-Tri-O-galloyl-3,6-hexahydroxydiphenoylglucose beta-D-Glucopyranose, cyclic 3,6-(4,4',5,5',6,6')-hexahydroxy(1,1'-biphenyl)-2,2'-dicarboxylate) 1,2,4-tris(3,4,5-trihydroxybenzoate), (R)- Punicafolin (CAS 88847-11-4)
- Methyl 3,5-difluoro-2-methylbenzoate (CAS 1352397-46-6)
- 4-Carbamoyl-1-Azabicyclo[2.2.1]Heptan-1-Ium Bromide (CAS 2197062-92-1)
- 3-(2-Methoxyethoxy)-4-methylaniline (CAS 1154942-83-2)
- (E)-3-(4-Bromoanilino)-1-(2,5-dichloro-3-thienyl)-2-propen-1-one (CAS 338402-20-3)
- 2-(3-Chlorophenyl)pyrimidine-5-carbaldehyde (CAS 928713-22-8)
- CGMP Dependent Kinase Inhibitor Peptide (CAS 82801-73-8)
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