(E)-4-(4-chlorophenyl)-2-methyl-6-(2-(((4-nitrobenzyl)oxy)imino)ethyl)pyridine-3,5-dicarbonitrile CAS 303148-08-5
| CAS No. | 303148-08-5 |
| Molecular Formula | C23H16ClN5O3 |
| Molecular Weight | 445.86 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (E)-4-(4-chlorophenyl)-2-methyl-6-(2-(((4-nitrobenzyl)oxy)imino)ethyl)pyridine-3,5-dicarbonitrile (CAS 303148-08-5), a certified reference material (molecular formula C23H16ClN5O3, MW 445.86 g/mol) for analytical method development and quality control.
The molecular framework of (E)-4-(4-chlorophenyl)-2-methyl-6-(2-(((4-nitrobenzyl)oxy)imino)ethyl)pyridine-3,5-dicarbonitrile (C23H16ClN5O3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (E)-4-(4-chlorophenyl)-2-methyl-6-(2-(((4-nitrobenzyl)oxy)imino)ethyl)pyridine-3,5-dicarbonitrile 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 | C23H16ClN5O3 |
| Molecular Weight | 445.86 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related E Standards
- 1-(4-Chlorophenyl)-4-{2-[5-(trifluoromethyl)pyridin-2-yl]benzoyl}piperazine (CAS 1092345-91-9)
- 1-Benzyl-3-((3-chlorophenyl)sulfonyl)-6,7-difluoroquinolin-4(1H)-one (CAS 1326806-72-7)
- (3Z)-2-{[(2-chlorophenyl)methyl]sulfanyl}-3-{2-[3-(trifluoromethyl)phenyl]hydrazin-1-ylidene}-3H-indole (CAS 478044-94-9)
- (3Z)-2-{[(3-chlorophenyl)methyl]sulfanyl}-3-{2-[3-(trifluoromethyl)phenyl]hydrazin-1-ylidene}-3H-indole (CAS 478045-04-4)
- (3Z)-2-{[(4-chlorophenyl)methyl]sulfanyl}-3-{2-[3-(trifluoromethyl)phenyl]hydrazin-1-ylidene}-3H-indole (CAS 478043-99-1)
- 4-((4-Chlorophenyl)sulfonyl)-6-(ethylsulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylic acid (CAS 866051-02-7)
- 3-{[(4-chlorophenyl)methyl](2-ethoxyphenyl)sulfamoyl}benzoic acid (CAS 929974-81-2)
- Methyl 2-(2-((5-(((4-chlorophenyl)amino)methyl)-4-methyl-4H-1,2,4-triazol-3-yl)thio)acetamido)benzoate (CAS 333314-29-7)
Recommended Standards
- N-(5-Chloro-2-methoxyphenyl)-2-[4-(5-methyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidin-2-yl]acetamide (CAS 1775524-06-5)
- 1-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)methyl)-N-phenyl-3,4-dihydroisoquinoline-2(1H)-carboxamide (CAS 338793-10-5)
- N-(3-Chloro-4-methoxyphenyl)-2-[4-(5-methyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidin-2-yl]acetamide (CAS 1775404-12-0)
- 1-[2-(4-Chlorobenzoyl)-5-(trifluoromethyl)pyridin-3-yl]-4-phenylpiperazine (CAS 306977-50-4)
- Methyl 2-methyl-3-oxo-3-phenylpropanoate (CAS 29540-54-3)
- ((4-(2-Methoxyphenoxy)phenyl)sulfonyl)valine (CAS 1240405-74-6)
- Ethyl 5-chloro-2-(2-chloroacetamido)-4-phenylthiophene-3-carboxylate (CAS 302582-89-4)
- 2-(2-Hydroxyethyl)cyclopentan-1-ol (CAS 32943-15-0)
- 3-Bromo-6-(bromomethyl)-2-methylpyridine (CAS 123094-75-7)
- 5-Methyl-1-[(5-methyl-1,3,4-oxadiazol-2-yl)methyl]-1h-1,2,3-triazole-4-carboxylic acid (CAS 1251228-33-7)
- Propylene Glycol Monolaurate (CAS 27194-74-7)
- 4-Bromo-3-(difluoromethoxy)pyridine (CAS 1804910-68-6)
- 2-(tert-Butyl)-6-nitro-1H-indole (CAS 873055-09-5)
- Semaglutide impurity 88 (CAS CATO-C4X-222688)
Why CATO?
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