1,2-Bis(4-bromophenyl)diazene CAS 1601-98-5
| CAS No. | 1601-98-5 |
| Molecular Formula | C12H8Br2N2 |
| Molecular Weight | 340.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1,2-Bis(4-bromophenyl)diazene (CAS 1601-98-5), molecular formula C12H8Br2N2 and molecular weight 340.01 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1,2-Bis(4-bromophenyl)diazene (C12H8Br2N2) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 1,2-Bis(4-bromophenyl)diazene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H8Br2N2 |
| Molecular Weight | 340.01 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bis Standards
- 1,2-Bis(2-bromophenyl)diazene (CAS 15426-16-1)
- (2-Bromophenyl)(4-bromophenyl)methanone (CAS 78281-59-1)
- Bis(3-bromophenyl)methanone (CAS 25032-74-0)
- 1,2-bis(4-Bromophenyl)ethane (CAS 19829-56-2)
- N-(4-bromophenyl)-2-iodoacetamide (CAS 17641-04-2)
- 3-(2-Bromophenyl)-3-(2,2,2-trifluoroacetamido)propanoic acid (CAS 117291-11-9)
- 3-(3-Bromophenyl)-3-(2,2,2-trifluoroacetamido)propanoic acid (CAS 117291-13-1)
- 3-(4-Bromophenyl)-3-(2,2,2-trifluoroacetamido)propanoic acid (CAS 477850-17-2)
Recommended Standards
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- 2,7-Dibromo-9H-fluoren-4-ol (CAS 2140305-35-5)
- 2-(Difluoromethyl)-3-nitro-5-(trifluoromethoxy)pyridine-4-methanol (CAS 1806049-64-8)
- (4-Chlorophenyl)(4-methylmorpholin-2-yl)methanamine (CAS 1423028-20-9)
- 3-Ethylpyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione (CAS 779353-63-8)
- N-(9-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-6-oxo-6,9-dihydro-1H-purin-2-yl)-2,2-diphenylacetamide (CAS 91288-93-6)
- 2-Chloro-n-(pyridin-2-ylmethyl)acetamide hydrochloride (CAS 125879-78-9)
- 2-Chloro-N-(2-chloro-5-nitrophenyl)propanamide (CAS 565172-41-0)
- 5-(tert-Butyl)-3-(2-(pyrrolidin-1-yl)ethyl)-1H-1,2,4-triazole (CAS 1279211-79-8)
- 5-Bromo-6-methyl-7-azaindole (CAS 958358-00-4)
- (4-Bromophenyl)(cyclopropyl)methanol (CAS 70289-39-3)
- Liraglutide Impurity 21 TFA Salt (CAS CATO-C4X-199221)
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