Methyl 2-(2-chloro-6-ethoxy-4-((3-methyl-5-oxo-1-phenyl-1H-pyrazol-4(5H)-ylidene)methyl)phenoxy)acetate CAS 431979-47-4
| CAS No. | 431979-47-4 |
| Molecular Formula | C22H21ClN2O5 |
| Molecular Weight | 428.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Methyl 2-(2-chloro-6-ethoxy-4-((3-methyl-5-oxo-1-phenyl-1H-pyrazol-4(5H)-ylidene)methyl)phenoxy)acetate.
Methyl 2-(2-chloro-6-ethoxy-4-((3-methyl-5-oxo-1-phenyl-1H-pyrazol-4(5H)-ylidene)methyl)phenoxy)acetate (CAS 431979-47-4), molecular formula C22H21ClN2O5 and molecular weight 428.87 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Methyl 2-(2-chloro-6-ethoxy-4-((3-methyl-5-oxo-1-phenyl-1H-pyrazol-4(5H)-ylidene)methyl)phenoxy)acetate (C22H21ClN2O5) is characterized by a flavonoid 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 Methyl 2-(2-chloro-6-ethoxy-4-((3-methyl-5-oxo-1-phenyl-1H-pyrazol-4(5H)-ylidene)methyl)phenoxy)acetate 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 | C22H21ClN2O5 |
| Molecular Weight | 428.87 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- N-(5-Chloro-3-(phenylsulfonyl)-1H-indol-2-yl)-2-fluorobenzamide (CAS 918493-43-3)
- N-(5-Chloro-3-(phenylsulfonyl)-1H-indol-2-yl)-3-fluorobenzamide (CAS 918493-49-9)
- N-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazine-1-carbothioyl}benzamide (CAS 260442-21-5)
- 2-(4-(2-Chloro-6-fluorobenzamido)phenyl)-N-cyclopentyl-2H-tetrazole-5-carboxamide (CAS 1396798-54-1)
- 3-[1-(3-Chloro-4-fluorobenzoyl)piperidin-4-yl]-4-[(4-methylphenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775385-03-9)
- 3-[1-(5-Chloro-2-fluorobenzoyl)piperidin-4-yl]-4-[(4-methylphenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775518-39-2)
- 1775492-05-1 4-Chloro-2-methoxy-N-{1-[2-methyl-6-(trifluoromethyl)pyrimidin-4-yl]piperidin-4-yl}benzamide MFCD28805964 (CAS 1775492-05-1)
- 4-Chloro-N-(2-(dimethylamino)-4,6-diphenylpyrimidin-5-yl)benzamide (CAS 443315-37-5)
Recommended Standards
- 4-[3-(3-Chlorophenyl)-1,2,4-oxadiazol-5-yl]-2-(3,4-dimethylphenyl)-1,2-dihydrophthalazin-1-one (CAS 478045-69-1)
- Lenvatinib Impurity 65 (CAS CATO-C4X-114065)
- 4-(3-(4-Chlorophenyl)-1,2,4-oxadiazol-5-yl)-2-(3,4-dimethylphenyl)phthalazin-1(2H)-one (CAS 478045-68-0)
- Flomoxef Impurity 4 (CAS 72591-95-8)
- [N-[α-[2-(Dibutylglycinamido)phenyl]benzylidene]glycinato]nickel (CAS 847654-16-4)
- 2-([2,2'-Bithiophen]-5-yl)ethanamine (CAS 923284-38-2)
- 4-((2-(4-Methoxyphenyl)-2-oxoethyl)thio)-1,5,6,7-tetrahydro-2H-cyclopenta[d]pyrimidin-2-one (CAS 898444-01-4)
- 2-Ethyl-1-methyl-5-nitro-1h-indole (CAS 174274-83-0)
- tert-Butyl ((4-aminobicyclo[2.1.1]hexan-1-yl)methyl)carbamate (CAS 1638765-45-3)
- 4-Isocyanoacetophenone (CAS 245539-10-0)
- 4,6-Diethoxy-2-methylpyrimidine (CAS 28824-75-1)
- (4-Chlorophenyl)(1H-1,2,3-triazol-4-yl)methanol (CAS 1429056-35-8)
- Methyl ((3-(3-chlorophenyl)-2-oxooxazolidin-5-yl)methyl)carbamate (CAS 954595-98-3)
- Semaglutide impurity 29 (CAS 1188328-22-4)
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