2,3-Dibromo-6,7-dicyanonaphthalene CAS 74815-81-9
| CAS No. | 74815-81-9 |
| Molecular Formula | C12H4Br2N2 |
| Molecular Weight | 335.98 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 2,3-Dibromo-6,7-dicyanonaphthalene.
CATO supplies 2,3-Dibromo-6,7-dicyanonaphthalene (CAS 74815-81-9), a certified reference material (molecular formula C12H4Br2N2, MW 335.98 g/mol) for analytical method development and quality control.
The molecular framework of 2,3-Dibromo-6,7-dicyanonaphthalene (C12H4Br2N2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C12H4Br2N2 |
| Molecular Weight | 335.98 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 3-bromo-4-(4-bromophenyl)-4-oxobutanoic acid (CAS 35158-41-9)
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- 4-Bromo-2-(2,6-dichlorophenyl)-5-hydroxypyridazin-3(2H)-one (CAS 565157-22-4)
- Epinephrine Impurity 89 (CAS CATO-C4X-184989)
- Triadimenol B (CAS 70585-37-4)
- 4-(4-Bromophenyl)-1-methyl-1H-pyrazole (CAS 1191616-45-1)
- Spiro[2.5]Octane-4-carboxylic acid (CAS 83115-72-4)
- (Z)-6-fluoro-3-((1-methyl-1H-1,2,4-triazol-5-yl)methylene)-4-nitroisobenzofuran-1(3H)-one (CAS 1322616-34-1)
- Methyl 4-methylpicolinate (CAS 13509-13-2)
- Amifostine Impurity 7 (CAS 174397-83-2)
- 2-(4-Ethoxybenzenesulfonamido)-4-(methylsulfanyl)butanoic acid (CAS 1009545-11-2)
- 4-((5-(Carboxymethyl)-2-hydroxyphenyl)diazenyl)phenyl (2-(trimethylammonio)ethyl) phosphate (CAS 359435-74-8)
- 4-[[[4-(2,6-Dichlorobenzoylamino)-1H-pyrazol-3-yl]carbonyl]amino]piperidine-1-carboxylic acid tert-butyl ester (CAS 844443-90-9)
- Glucagon receptor antagonist I (CAS 438618-32-7)
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