(E)-4,4'-(Diazene-1,2-diyl)dianiline CAS 98043-56-2
| CAS No. | 98043-56-2 |
| Molecular Formula | C12H12N4 |
| Molecular Weight | 212.25 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 (E)-4,4'-(Diazene-1,2-diyl)dianiline.
(E)-4,4'-(Diazene-1,2-diyl)dianiline (CAS 98043-56-2), molecular formula C12H12N4 and molecular weight 212.25 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, (E)-4,4'-(Diazene-1,2-diyl)dianiline is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 212.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C12H12N4 |
| Molecular Weight | 212.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1985 |
| Nitrogen Atoms | 4 |
Related E Standards
- 2,2'-(Diazene-1,2-diyl)dianiline (CAS 176662-50-3)
- 3,3'-(Diazene-1,2-diyl)diphenol (CAS 2050-15-9)
- 4,4'-(Diazene-1,2-diyl)dibenzaldehyde (CAS 140661-40-1)
- 3,3'-(diazene-1,2-diyl)dibenzaldehyde (CAS CATO-C3D-262533)
- (E)-3,3'-(diazene-1,2-diyl)dibenzaldehyde (CAS 52805-50-2)
- (E)-(Diazene-1,2-diylbis(4,1-phenylene))dimethanol (CAS 120837-75-4)
- (E)-Diazene-1,2-diylbis(piperidin-1-ylmethanone) (CAS 871024-86-1)
- 2,2'-(Diazene-1,2-diyl)bis(5-hydroxy-2-methylpentanenitrile) (CAS 4693-47-4)
Recommended Standards
- (E)-3-(1-Methyl-1H-pyrazol-4-yl)-1-phenylprop-2-en-1-one (CAS 959003-66-8)
- (S)-1-((S)-Pyrrolidine-2-carbonyl)pyrrolidine-2-carboxylic acid (CAS 20488-28-2)
- (E)-2-methyl-6-styrylpyridazin-3(2H)-one (CAS 83516-71-6)
- (S)-Methyl 2-(1-amino-2-methylpropyl)-5-methyloxazole-4-carboxylate (CAS 781612-31-5)
- 4-(2,2-Difluoroethoxy)-2-fluorobenzaldehyde (CAS 1282556-77-7)
- tert-Butyl 4-(3-hydroxyprop-1-yn-1-yl)piperidine-1-carboxylate (CAS 403802-41-5)
- 5-chloro-1H-imidazole-4-carbaldehyde (CAS 61994-11-4)
- 3,5-Di(pyridin-4-yl)phenol (CAS 876905-57-6)
- 5-Fluoro-6-(phenylamino)pyrimidine-2,4(1H,3H)-dione (CAS 105950-49-0)
- Methyl 2-(4,5-dimethoxy-2-{[4-(2-methoxyphenyl)piperazin-1-yl]sulfonyl}phenyl)acetate (CAS 497060-56-7)
- 4-((Trimethylsilyl)ethynyl)picolinaldehyde (CAS 1196151-87-7)
- N-{[3-(4-methoxyphenyl)-1,2-oxazol-5-yl]methyl}benzenesulfonamide (CAS 343372-72-5)
- 6-Iodo-1,4-dimethylquinolin-2(1H)-one (CAS 1420793-28-7)
- Tirzepatide Impurity 19 X TFA Salt (CAS CATO-C4X-324019)
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