1,3,6,8-Tetrabromopyrene CAS 128-63-2
| CAS No. | 128-63-2 |
| Molecular Formula | C16H22Br4 |
| Molecular Weight | 533.96 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 1,3,6,8-Tetrabromopyrene.
CATO supplies 1,3,6,8-Tetrabromopyrene (CAS 128-63-2), a certified reference material (molecular formula C16H22Br4, MW 533.96 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H22Br4, 1,3,6,8-Tetrabromopyrene contains bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 533.96 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C16H22Br4 |
| Molecular Weight | 533.96 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 chloroform, dichloromethane, ethyl acetate |
| 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 Tetrabromopyrene Standards
Recommended Standards
- Asciminib Impurity 2 (CAS 1492954-67-2)
- Lenvatinib Impurity 181 (CAS CATO-C4X-1140181)
- N-(2-Chloro-5-(trifluoromethyl)phenyl)-2-((4-(4-ethoxyphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477330-00-0)
- Lenvatinib Impurity 182 (CAS CATO-C4X-1140182)
- 2-(2-Isobutylpyrimidin-5-yl)propanoic acid (CAS 122377-67-7)
- (S)-4-((tert-Butyldimethylsilyl)oxy)butan-2-ol (CAS 123406-25-7)
- Methyl 3-Fluoro-5-methoxypyridine-2-carboxylate (CAS 1256787-03-7)
- 4-Ethoxypicoline (CAS 18615-87-7)
- 2-Iodo-3-methylaniline (CAS 89938-16-9)
- Tadalafil Impurity 105 (CAS CATO-C4X-1087105)
- 5-(2,7-Diazaspiro[4.4]nonan-2-yl)isoxazole (CAS 646056-46-4)
- 1-Butyl-3-(2-chloro-6-(3-methyl-1H-indol-1-yl)benzyl)urea (CAS 866042-64-0)
- Ketoconazole-d8 (CAS 1217706-96-1)
- Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 330456-24-1)
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