4-{2-[(4E)-1,3-dioxo-3,4-dihydro-1H-2-benzopyran-4-ylidene]hydrazin-1-yl}benzonitrile CAS 341965-99-9
| CAS No. | 341965-99-9 |
| Molecular Formula | C16H9N3O3 |
| Molecular Weight | 291.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H9N3O3, 4-{2-[(4E)-1,3-dioxo-3,4-dihydro-1H-2-benzopyran-4-ylidene]hydrazin-1-yl}benzonitrile contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 291.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
4-{2-[(4E)-1,3-dioxo-3,4-dihydro-1H-2-benzopyran-4-ylidene]hydrazin-1-yl}benzonitrile (CAS 341965-99-9) is a high-purity analytical reference standard with the molecular formula C16H9N3O3 and a molecular weight of 291.26 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-{2-[(4E)-1,3-dioxo-3,4-dihydro-1H-2-benzopyran-4-ylidene]hydrazin-1-yl}benzonitrile 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 | C16H9N3O3 |
| Molecular Weight | 291.26 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
Related E Standards
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Recommended Standards
- 4,5-Dimethyl 1-(4,6-dimethylpyrimidin-2-yl)-1H-1,2,3-triazole-4,5-dicarboxylate (CAS 23951-57-7)
- 4-Cyano-N-(1,3-dioxoisoindolin-5-yl)benzamide (CAS 683235-33-8)
- 4-(3-Oxoisobenzofuran-1(3H)-ylidene)-2-phenyloxazol-5(4H)-one (CAS 35496-44-7)
- 4-Cyanophenyl 6-(1H-1,2,4-triazol-1-yl)nicotinate (CAS 400079-24-5)
- Allyl 3-bromo-4-((3-fluorobenzyl)oxy)benzoate (CAS 1706453-33-9)
- Ethyl 4-methyl-3-(methylsulfonyl)-5-nitrobenzoate (CAS 52317-31-4)
- 4-(2,3,4,9-Tetrahydro-1H-pyrido[3,4-b]indol-1-yl)phenol (CAS 370582-53-9)
- 2-Chloro-6-cyclopropoxybenzonitrile (CAS 1243470-25-8)
- 3-Iodo-1H-pyrrolo[2,3-c]pyridine-7-carbonitrile (CAS 1190314-92-1)
- 1-Ethyl-5-nitro-1h-pyrazole-3-carboxylic acid (CAS 1245806-48-7)
- 6-bromo-2,3-difluorobenzene-1-(¹¹C)carboxylic acid (CAS 2416569-48-5)
- Methyl 3,4-Dimethylbenzoate (CAS 38404-42-1)
- 2-Methyl-N-(propan-2-ylidene)propane-2-sulfinamide (CAS 1029971-97-8)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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