4,4’-Dibromotriphenylamine CAS 81090-53-1
| CAS No. | 81090-53-1 |
| Molecular Formula | C18H13Br2N |
| Molecular Weight | 403.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4’-Dibromotriphenylamine (CAS 81090-53-1), molecular formula C18H13Br2N and molecular weight 403.11 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H13Br2N, 4,4’-Dibromotriphenylamine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 403.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
CATO manufactures 4,4’-Dibromotriphenylamine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H13Br2N |
| Molecular Weight | 403.11 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- 3,5-Dibromo-N,N-diphenylaniline (CAS 842121-96-4)
- N-nitrosyl-ammonium bromide (CAS CATO-C4X-1085102)
- 2,5-Dibromo-N,N-diphenylaniline (CAS 407636-81-1)
- Bromoxynil-Octanoate (CAS 1689-99-2)
- 1-(4-Nitro-pyrazol-1-ylmethyl)-1h-pyrazole-3-carboxylic acid hydrazide (CAS 1263213-94-0)
- 2-(Ethylamino)-2-methyl-3-(1h-1,2,4-triazol-1-yl)propanamide (CAS 1248358-96-4)
- 2-Ethyl-8,9-dimethoxy-5H,6H-[1,2,4]triazolo[1,5-c]quinazoline-5-thione (CAS 860610-83-9)
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- 2,3,4-Tri-O-acetyl-α-D-glucuronic acid methyl ester, trichloroacetimidate, 97% (CAS 92420-89-8)
- 5-Chloro-1-(3-(trifluoromethyl)phenyl)pentan-1-one (CAS 487058-80-0)
- 2-Bromo-6-chloro-3-methylbenzoic acid (CAS 2091629-72-8)
- N-(1-hydroxypropan-2-yl)-3-(2-oxopyridin-1(2H)-yl)propanamide (CAS 1153282-79-1)
- Articaine EP Impurity B HCl (CAS 114176-52-2(Free Base))
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com