2-[2-(5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-vinyl]-6-methoxy-benzoic acid methyl ester CAS 365542-59-2
| CAS No. | 365542-59-2 |
| Molecular Formula | C21H19ClN2O3 |
| Molecular Weight | 382.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 382.84 g/mol gives 2-[2-(5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-vinyl]-6-methoxy-benzoic acid methyl ester distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-[2-(5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-vinyl]-6-methoxy-benzoic acid methyl ester (CAS 365542-59-2), a certified reference material (molecular formula C21H19ClN2O3, MW 382.84 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 2-[2-(5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-vinyl]-6-methoxy-benzoic acid methyl ester is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 382.84 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C21H19ClN2O3 |
| Molecular Weight | 382.84 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- (5Z)-5-({4-[(2-chloro-1,3-thiazol-5-yl)methoxy]-3-methoxyphenyl}methylidene)-1,3-thiazolidine-2,4-dione (CAS 866131-59-1)
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Recommended Standards
- 1,3-Diethyl 2-(3-chlorophenyl)-4-hydroxy-4-methyl-6-oxocyclohexane-1,3-dicarboxylate (CAS 4759-55-1)
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- N-(4-((4-chlorophenyl)thio)-3-cyanophenyl)-4-fluorobenzamide (CAS 306980-47-2)
- 1-(4-Chlorophenyl)-3-[(1S,2S)-2-(hydroxymethyl)-1H,2H,3H-naphtho[2,1-b]pyran-1-yl]urea (CAS 477713-62-5)
- 4-(4-Chlorobenzoyl)-3-hydroxy-1-(6-methoxybenzo[d]thiazol-2-yl)-5-phenyl-1H-pyrrol-2(5H)-one (CAS 477333-34-9)
- 7,8-Dimethyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,2,4]triazolo[1,5-a]pyridine (CAS 2243674-33-9)
- CAS 2260670-25-3 (CAS 2260670-25-3)
- Methyl 4-bromo-2-(bromomethyl)-3-chlorobenzoate (CAS 2097013-73-3)
- 4-(3-HYdroxypropyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazole (CAS 1864052-96-9)
- 5-(4-Fluorophenyl)-N-methylimidazo[1,2-a]pyrazin-8-amine (CAS 787591-76-8)
- 2-(4-Ethylphenyl)-4-(pyrrolidin-1-yl)quinoline (CAS 853328-28-6)
- 1-(Chloromethyl)-2-fluoro-4-methoxy-5-nitrobenzene (CAS 2092529-70-7)
- 2-Bromo-1,3-difluoro-5-(4-propylcyclohexyl)benzene (CAS 848093-70-9)
- Gastric Inhibitory Polypeptide (3-42) (human) trifluoroacetate salt (CAS 1802086-25-4)
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