(2E)-3-(4-Chlorophenyl)-2-[2-(4-methylphenyl)hydrazin-1-ylidene]-3-oxopropanal CAS 338400-45-6
| CAS No. | 338400-45-6 |
| Molecular Formula | C16H13ClN2O2 |
| Molecular Weight | 300.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (2E)-3-(4-Chlorophenyl)-2-[2-(4-methylphenyl)hydrazin-1-ylidene]-3-oxopropanal 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.
(2E)-3-(4-Chlorophenyl)-2-[2-(4-methylphenyl)hydrazin-1-ylidene]-3-oxopropanal (CAS 338400-45-6), molecular formula C16H13ClN2O2 and molecular weight 300.74 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (2E)-3-(4-Chlorophenyl)-2-[2-(4-methylphenyl)hydrazin-1-ylidene]-3-oxopropanal (C16H13ClN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 300.74 g/mol, it falls into the moderately-high-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H13ClN2O2 |
| Molecular Weight | 300.74 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related E Standards
- 3-(4-Chlorophenyl)-1-(4,6-dimethylpyrimidin-2-yl)-1H-pyrazol-5-ol (CAS 1010866-05-3)
- 3-(1-(2-Chlorophenyl)-2-nitroethyl)-1H-indole (CAS 1018239-17-2)
- methyl 3-[(2-chlorophenyl)methyl]imidazo[1,5-a]pyridine-1-carboxylate (CAS 1020253-32-0)
- (3Z)-3-{[(4-chlorophenyl)amino]methylidene}-1-(pyrimidin-2-yl)pyrrolidin-2-one (CAS 1164471-74-2)
- 1-(4-Chlorophenyl)-3-(4-methoxyphenyl)-1H-pyrazol-5-ol (CAS 1174858-83-3)
- 2-{[5-(3-chlorophenyl)-1,3-oxazol-2-yl]methoxy}aniline (CAS 1183067-04-0)
- 1-(4-Chlorophenyl)-3-(4-methoxyphenyl)-1H-pyrazol-4-ol (CAS 1202029-35-3)
- 2-[(4-Chlorophenyl)amino]-4H-chromene-3-carboxamide (CAS 1260912-44-4)
Recommended Standards
- (2E)-2-[(4-Chlorophenyl)methylidene]-4-methyl-3-oxo-4-(1H-1,2,4-triazol-1-yl)pentanenitrile (CAS 320420-68-6)
- (2E,3E)-1-(4-Chlorophenyl)-3-hydrazinylidene-2-(2-phenylhydrazin-1-ylidene)propan-1-one (CAS 338414-15-6)
- (2-Chloro-4-nitrophenyl)methylene diacetate (CAS 77455-54-0)
- (3-Amino-4,6-dimethylfuro[2,3-b]pyridin-2-yl)(4-chlorophenyl)methanone (CAS 260549-57-3)
- 1-Bromo-2-propanol (contains ca. 20% 2-Bromo-1-propanol) (stabilized with MgO) (CAS 19686-73-8)
- 2-Oxo-2-phenylethyl 3,6-dimethyl-2-phenylquinoline-4-carboxylate (CAS 355421-86-2)
- 2-Chloro-10-(2-diethylaminoethyl)-9-acridinone hydrochloride (CAS 35231-41-5)
- P-Nitrobiphenyl (CAS 92-93-3)
- 1-Methyl-1,4,7-triazonane (CAS 141213-11-8)
- Methyl 6-amino-6-phenylhexanoate (CAS 1179165-47-9)
- 2-Phenylquinoline-7-carboxylic acid (CAS 841297-69-6)
- n-(1-Methyl-1h-pyrazol-5-yl)methanesulfonamide (CAS 1249489-23-3)
- N-[5-(Aminomethyl)-4H-1,2,4-triazol-3-yl]-4,6-dimethylpyrimidin-2-amine dihydrochloride (CAS 2109294-81-5)
- [D-Ser6]-Semaglutide (CAS CATO-C4X-2226287)
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