1-(1-Ethyl-2-oxoindolin-5-yl)-3-(thiophen-2-yl)urea CAS 1169957-63-4
| CAS No. | 1169957-63-4 |
| Molecular Formula | C15H15N3O2S |
| Molecular Weight | 301.36 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-(1-Ethyl-2-oxoindolin-5-yl)-3-(thiophen-2-yl)urea.
1-(1-Ethyl-2-oxoindolin-5-yl)-3-(thiophen-2-yl)urea (CAS 1169957-63-4) is a high-purity analytical reference standard with the molecular formula C15H15N3O2S and a molecular weight of 301.36 g/mol.
The molecular framework of 1-(1-Ethyl-2-oxoindolin-5-yl)-3-(thiophen-2-yl)urea (C15H15N3O2S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), 1-(1-Ethyl-2-oxoindolin-5-yl)-3-(thiophen-2-yl)urea 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 | C15H15N3O2S |
| Molecular Weight | 301.36 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- (Z)-4-((2-Oxoindolin-3-ylidene)amino)benzenesulfonamide (CAS 83088-99-7)
- (2S)-2-(2-(2-Oxoindolin-3-yl)acetamido)succinic acid (CAS 119975-53-0)
- 2-(2-Oxoindolin-3-ylidene)-N-phenylhydrazine-1-carbothioamide (CAS 28492-94-6)
- 1-(1-Ethyl-2-oxoindolin-5-yl)-3-phenylurea (CAS 1172889-54-1)
- N'-(2-Oxoindolin-3-ylidene)-2-phenoxyacetohydrazide (CAS 154910-40-4)
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- 4-(((2-Oxoindolin-3-ylidene)methyl)amino)benzenesulfonamide (CAS 388626-12-8)
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