(E)-4-Oxo-4-{4-[(E)-2-phenyldiazenyl]anilino}-2-butenoic acid CAS 1089293-07-1
| CAS No. | 1089293-07-1 |
| Molecular Formula | C16H13N3O3 |
| Molecular Weight | 295.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-4-Oxo-4-{4-[(E)-2-phenyldiazenyl]anilino}-2-butenoic acid (CAS 1089293-07-1), molecular formula C16H13N3O3 and molecular weight 295.29 g/mol, is a CATO reference standard with documented purity and traceability.
(E)-4-Oxo-4-{4-[(E)-2-phenyldiazenyl]anilino}-2-butenoic acid (C16H13N3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), (E)-4-Oxo-4-{4-[(E)-2-phenyldiazenyl]anilino}-2-butenoic acid 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 | C16H13N3O3 |
| Molecular Weight | 295.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 7-(3-Methoxypropyl)-1,3-dimethyl-2,4-dioxo-2,3,4,7-tetrahydro-1H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid (CAS 1086386-36-8)
- 2-(2,6-Dimethylphenyl)-1,3-dioxoisoindoline-5-carboxylic acid (CAS 110768-27-9)
- Methyl 7-(2-methoxyethyl)-1,3-dimethyl-2,4-dioxo-2,3,4,7-tetrahydro-1H-pyrrolo[2,3-d]pyrimidine-6-carboxylate (CAS 1086386-34-6)
- 3-(5-{[(4-Fluorophenyl)amino]carbonyl}-1,3,4-thiadiazol-2-yl)propanoic acid (CAS 1142202-61-6)
- 1-(Benzo[d][1,3]dioxol-5-yl)-N-(3-ethoxybenzyl)methanamine hydrochloride (CAS 1048947-19-8)
- 4-Chloro-2,3-dihydro-1H-inden-1-amine (CAS 67120-40-5)
- (R)-[1,1'-BInaphthalene]-3,3'-dicarboxylicacid,2,2'-dimethoxy- (CAS 35216-66-1)
- (4-Isopropylbenzyl)hydrazine hydrochloride (CAS 94409-30-0)
- 2-(2-[Ethyl(methyl)amino]ethoxy)ethan-1-ol (CAS 123119-86-8)
- 2,4,5-Tribromotoluene (CAS 3278-88-4)
- 3,4-Dichloro-N-((5-chloro-1-methyl-3-phenyl-1H-pyrazol-4-yl)methyl)aniline (CAS 956185-01-6)
- Bilirubin mixture (CAS CATO-C4X-15616)
- Di-(4-Fluorophenyl)Propynyl-N-Cycloheptyl-Carbamate (CAS 101052-66-8)
- Mast Cell Degranulating (MCD) Peptide (CAS 32908-73-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com