(Z)-Methyl 2-(1-(2-chlorophenyl)-4-((3-(dimethylamino)phenyl)(methylamino)methylene)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl)acetate CAS 1820587-57-2
| CAS No. | 1820587-57-2 |
| Molecular Formula | C22H23ClN4O3 |
| Molecular Weight | 426.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, (Z)-Methyl 2-(1-(2-chlorophenyl)-4-((3-(dimethylamino)phenyl)(methylamino)methylene)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl)acetate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 426.90 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
(Z)-Methyl 2-(1-(2-chlorophenyl)-4-((3-(dimethylamino)phenyl)(methylamino)methylene)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl)acetate (CAS 1820587-57-2) is a high-purity analytical reference standard with the molecular formula C22H23ClN4O3 and a molecular weight of 426.90 g/mol.
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 | C22H23ClN4O3 |
| Molecular Weight | 426.90 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.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Recommended Standards
- 3-[1-(5-Chloro-2-methoxybenzoyl)piperidin-4-yl]-4-(4-methylphenyl)-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775513-33-1)
- Darolutamide impurity 7 (CAS CATO-C4X-31067)
- 3-[1-(2-Chlorobenzoyl)piperidin-4-yl]-4-[(4-methoxyphenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775513-23-9)
- Halometasone impurity 14 (CAS CATO-C4X-144614)
- 3-Hydroxy-3-(4-methoxyphenyl)-2-methyl-1-phenylpropan-1-one (CAS 84466-80-8)
- Spiro[3.4]Octan-2-ylmethanamine (CAS 1496060-20-8)
- 2-(4-(Benzyloxy)benzoyl)-N-(4-(trifluoromethoxy)phenyl)hydrazine-1-carboxamide (CAS 946387-30-0)
- Tert-butyl (3-cyano-5,6,7,8-tetrahydro-4h-cyclohepta[b]thiophen-2-yl)carbamate (CAS 114210-00-3)
- 1-(2-Amino-1-(m-tolyl)ethyl)pyrrolidine-3-carboxylic acid (CAS 886363-94-6)
- 2-Methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isonicotinaldehyde (CAS 1356962-10-1)
- 2'-(Tert-butyl)-2'H-spiro[piperidine-4,5'-pyrano[3,2-c]pyrazol]-7'(6'H)-one (CAS 1198001-03-4)
- N1-benzyl-N2-(p-tolyl)oxalamide (CAS 357268-31-6)
- 1-(2-Thienylmethyl)piperidin-3-amine dihydrochloride (CAS 1158412-19-1)
- Liraglutide Impurity 28 (CAS CATO-C4X-199228)
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