2,3-dichloro-4-[2-(2,4-difluorophenyl)hydrazono]but-2-enoic acid CAS 219929-32-5
| CAS No. | 219929-32-5 |
| Molecular Formula | C10H6Cl2F2N2O2 |
| Molecular Weight | 295.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 295.07 g/mol gives 2,3-dichloro-4-[2-(2,4-difluorophenyl)hydrazono]but-2-enoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2,3-dichloro-4-[2-(2,4-difluorophenyl)hydrazono]but-2-enoic acid (CAS 219929-32-5), a certified reference material (molecular formula C10H6Cl2F2N2O2, MW 295.07 g/mol) for analytical method development and quality control.
Structurally, 2,3-dichloro-4-[2-(2,4-difluorophenyl)hydrazono]but-2-enoic acid (C10H6Cl2F2N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 295.07 g/mol, it falls into the medium-molecular-weight range. 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 | C10H6Cl2F2N2O2 |
| Molecular Weight | 295.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2019 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related dichloro Standards
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- methyl 2,6-dichloro-3,5-dinitrobenzoate (CAS 1146-80-1)
- 2-((4,5-Dichloro-1H-imidazol-1-yl)methyl)quinazolin-4-ol (CAS 1219570-34-9)
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Recommended Standards
- 2-(bromomethyl)-4-fluoro-6-(trifluoromethoxy)pyridin-3-amine (CAS 1806185-95-4)
- 2-[4-bromo-5-cyclopropyl-3-(difluoromethyl)-1h-pyrazol-1-yl]acetic acid (CAS 1001500-11-3)
- 3-Iodo-2,5,6-trimethoxypyridine (CAS 1364917-19-0)
- 3-[5-Bromo-2-(difluoromethoxy)phenyl]propanoic acid (CAS 1086386-07-3)
- 4-Chloro-7-methyl-2-(pyridin-3-yl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine (CAS 794582-27-7)
- (1S,2S)-1,2-di((R)-1,4-Dioxaspiro[4.5]decan-2-yl)ethane-1,2-diol (CAS 76779-67-4)
- tert-Butyl 4-ethynyl-4-hydroxyazepane-1-carboxylate (CAS 1408076-13-0)
- 8-Iodo-1,2,3,4-tetrahydroisoquinoline (CAS 72299-63-9)
- Methyl 5-nitro-1-naphthoate (CAS 59866-98-7)
- Ruxolitinib Impurity 215 (CAS CATO-C4X-2058215)
- 1-(2-(3-Nitrophenyl)imidazo[1,2-a]pyridin-3-yl)ethanone (CAS 1301138-36-2)
- Decahydroquinoxaline-2-carbonitrile (CAS 1351382-19-8)
- 4,5-Bis(pentylthio)-1,3-dithiole-2-thione (CAS 106920-25-6)
- Semaglutide impurity 43 (CAS CATO-C4X-222643)
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