1-(2-Chlorophenyl)-3-(1-(3-methoxyphenyl)-5-oxopyrrolidin-3-yl)urea CAS 891097-27-1
| CAS No. | 891097-27-1 |
| Molecular Formula | C18H18ClN3O3 |
| Molecular Weight | 359.81 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 1-(2-Chlorophenyl)-3-(1-(3-methoxyphenyl)-5-oxopyrrolidin-3-yl)urea.
1-(2-Chlorophenyl)-3-(1-(3-methoxyphenyl)-5-oxopyrrolidin-3-yl)urea (CAS 891097-27-1) is a high-purity analytical reference standard with the molecular formula C18H18ClN3O3 and a molecular weight of 359.81 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 1-(2-Chlorophenyl)-3-(1-(3-methoxyphenyl)-5-oxopyrrolidin-3-yl)urea is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 359.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C18H18ClN3O3 |
| Molecular Weight | 359.81 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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenyl Standards
- 1-(2-Chlorophenyl)-3-(1-(4-methoxyphenyl)-5-oxopyrrolidin-3-yl)urea (CAS 891100-05-3)
- 1-(4-Chlorophenyl)-3-(4-(morpholine-4-carbonyl)phenyl)urea (CAS 496032-51-0)
- 3-(3-(4-Chlorophenyl)-2-ethyl-5-methyl-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidin-6-yl)propanoic acid (CAS 941233-71-2)
- 6-Acetyl-5-(4-chlorophenyl)-1,3,7-trimethyl-5,8-dihydropyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione (CAS 838845-69-5)
- 3-(4-(2-(3-Chlorophenyl)-2-oxoethyl)phenyl)-5-(methoxymethyl)oxazolidin-2-one (CAS 79039-02-4)
- Ethyl ((3-chlorophenyl)(4-oxochroman-3-yl)methyl)carbamate (CAS 439111-08-7)
- 2-((4-Chlorophenyl)thio)-N-(5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl)acetamide (CAS 298215-05-1)
- 2-((5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(o-tolyl)acetamide (CAS 336173-64-9)
Recommended Standards
- (E)-6-Chloro-3-(pyridin-2-yl)-2-styrylquinazolin-4(3H)-one (CAS 708212-97-9)
- (3-Chloro-4-methylphenyl)(4-(4-nitrophenyl)piperazin-1-yl)methanone (CAS 431996-53-1)
- N-(3-chlorobenzyl)-6,7,8-trimethoxyquinazolin-4-amine (CAS 150450-08-1)
- 1-(4-Nitrophenyl)piperidin-4-one O-(4-chlorobenzyl) oxime (CAS 338757-93-0)
- PRO-LAD (CAS 65527-63-1)
- 5-Cyclopropoxy-6-isopropyl-N-methylpyridin-2-amine (CAS 1243364-76-2)
- (1-(2-Fluorophenyl)-1H-1,2,3-triazol-4-yl)methanol (CAS 1247781-30-1)
- N1,N4,2,5-Tetrahydroxyterephthalamide (CAS 2243978-33-6)
- (S)-3-Amino-9-fluoro-4,5-dihydro-1H-benzo[b][1,4]diazepin-2(3H)-one dihydrochloride (CAS 2243205-28-7)
- 3-(2-Bromo-4-methylphenyl)pentan-3-ol (CAS 1583297-71-5)
- (6-Benzyloxypyridin-2-yl)methanol (CAS 198649-49-9)
- 2-((3-Cyano-6-phenyl-4-(p-tolyl)pyridin-2-yl)thio)-N-(m-tolyl)acetamide (CAS 332127-58-9)
- 2-(Difluoromethyl)-6-fluoro-4-methoxypyridine-3-carbonyl chloride (CAS 1805435-09-9)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
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