1,7-Dibromochrysene CAS 148552-33-4
| CAS No. | 148552-33-4 |
| Molecular Formula | C18H10Br2 |
| Molecular Weight | 386.08 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.
1,7-Dibromochrysene (CAS 148552-33-4) is a high-purity analytical reference standard with the molecular formula C18H10Br2 and a molecular weight of 386.08 g/mol.
Structurally, 1,7-Dibromochrysene (C18H10Br2) contains bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 386.08 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C18H10Br2 |
| Molecular Weight | 386.08 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Br-containing |
Related Dibromochrysene Standards
Recommended Standards
- 5,12-Dibromotetracene (CAS 133670-93-6)
- 1,3-Dibromo-2-(((4-methoxybenzyl)oxy)methyl)benzene (CAS 2095812-91-0)
- 2,7-Dibromotriphenylene (CAS 888041-37-0)
- 2,11-Dibromobenzo[c]phenanthrene (CAS 1236211-18-9)
- 2-[2-(bromomethyl)-4-fluoro-phenyl]-5,5-dimethyl-1,3,2-dioxaborinane (CAS 673456-16-1)
- 1H-Indole-1,6-diamine (CAS 877470-73-0)
- 2-Methyl-N-(2-(2-phenylpyrimidin-5-yl)ethyl)benzamide (CAS 2034343-21-8)
- 1-Methyl-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazin-6-ol (CAS 1935063-16-3)
- Methyl 3-(3-bromophenyl)isoxazole-4-carboxylate (CAS 267651-85-4)
- (5S)-5-[(methylamino)methyl]pyrrolidin-2-one (CAS 1909294-11-6)
- Buprenorphine EP Impurity E (CAS 130668-48-3)
- Vonoprazan Impurity 209 (CAS 31543-47-2)
- 3-(4-Bromophenyl)pentanedioic acid (CAS 1141-24-8)
- Tirzepatide Impurity 59 (CAS CATO-C4X-324059)
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