4-Bromo-1,2-diiodobenzene CAS 21521-54-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21521-54-0 |
| Molecular Formula | C6H3BrI2 |
| Molecular Weight | 408.80 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-1,2-diiodobenzene (CAS 21521-54-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H3BrI2. Molecular weight: 408.80 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H3BrI2 |
| Molecular Weight | 408.80 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| 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.) | 1963 |
| Halogen Content | Br/I-containing |
Related Bromo Standards
- 1-Bromo-2,4-diiodobenzene (CAS 126063-04-5)
- 2-Bromo-1,3-diiodobenzene (CAS 1369779-06-5)
- 1-Bromo-3,5-diiodobenzene (CAS 149428-64-8)
- 2-Bromo-1,4-diiodobenzene (CAS 860556-79-2)
- 2-(3-Bromo-5-iodophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 942069-57-0)
- 2-Bromo-5-iodophenylboronic acid pinacol ester (CAS 2121512-32-9)
- (S)-5-(5-Bromo-2,3-dihydrobenzofuran-7-yl)-8-chloro-3-methyl-2,3,4,5-tetrahydro-1H-benzo[d]azepin-7-ol (CAS 150490-85-0)
- 2,2'-(5-Bromo-1,3-phenylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 1150561-62-8)
Recommended Standards
- 9-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1,2,4,9-tetrahydrospiro[carbazole-3,2'-[1,3]dioxolane] (CAS 477873-13-5)
- (4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)(1H-indol-2-yl)methanone (CAS 634155-07-0)
- Ethyl 4-{[(4-chlorophenyl)methyl]amino}-6-(trifluoromethyl)quinoline-3-carboxylate (CAS 338748-31-5)
- Sulfolan (CAS 126-33-0)
- 2-Methyl-6-(2-phenylethenyl)pyridine (CAS 6266-99-5)
- N-(4-Chlorophenethyl)-4-(3-phenylpropoxy)aniline (CAS 1040686-75-6)
- 5,12-Dibromo-2,9-dioctylanthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetraone (CAS 209111-67-1)
- 1-tert-Butyl 2-methyl 2-methylpiperidine-1,2-dicarboxylate (CAS 470668-97-4)
- N-((2S,3R,4R,5R)-3,4,5,6-Tetrahydroxy-1-oxohexan-2-yl)acetamide (CAS 282727-46-2)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
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 13829788188 / jacky.chen@cato-chem.com