5,12-Dibromotetracene CAS 133670-93-6
| CAS No. | 133670-93-6 |
| Molecular Formula | C18H10Br2 |
| Molecular Weight | 386.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 386.08 g/mol gives 5,12-Dibromotetracene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5,12-Dibromotetracene (CAS 133670-93-6), molecular formula C18H10Br2 and molecular weight 386.08 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5,12-Dibromotetracene (C18H10Br2) is characterized by bromine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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 | 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.) | 1995 |
| Halogen Content | Br-containing |
Related Dibromotetracene Standards
Recommended Standards
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- 1,3-Dibromo-2-(((4-methoxybenzyl)oxy)methyl)benzene (CAS 2095812-91-0)
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- 1-Amino-4-chloro-2-methylanthracene-9,10-dione (CAS 3225-97-6)
- (1-(Pyridin-3-yl)piperidin-2-yl)methanol (CAS 1823868-96-7)
- 2-(cis-Hexahydropyrrolo[3,4-b]pyrrol-5(1H)-yl)-N,N-dimethylacetamide (CAS 1533520-33-0)
- Copper(II) 2-naphthoate trihydrate (CAS 14973-52-5)
- 2-Amino-3-(difluoromethyl)-5-methoxyisonicotinic acid (CAS 1805150-28-0)
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- Semaglutide impurity 93 (CAS CATO-C4X-222693)
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