1-Ethyl-3-(pyridin-3-yl)urea CAS 20949-54-6
| CAS No. | 20949-54-6 |
| Molecular Formula | C8H11N3O |
| Molecular Weight | 165.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-Ethyl-3-(pyridin-3-yl)urea (CAS 20949-54-6) is a high-purity analytical reference standard with the molecular formula C8H11N3O and a molecular weight of 165.19 g/mol.
The molecular framework of 1-Ethyl-3-(pyridin-3-yl)urea (C8H11N3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 1-Ethyl-3-(pyridin-3-yl)urea 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 | C8H11N3O |
| Molecular Weight | 165.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- 2-Methyl-3-(pyridin-3-yl)propanoic acid (CAS 1017146-67-6)
- 2-Methyl-3-(pyridin-2-yl)propanoic acid (CAS 1017183-06-0)
- 2-Methyl-2-(pyridin-2-yl)propanoic acid (CAS 1033546-27-8)
- [2-(pyridin-3-yl)ethyl]urea (CAS 1179193-35-1)
- 2-(Pyridin-2-yl)butanoic acid (CAS 1314887-35-8)
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- 4-(Pyridin-3-yl)butanoic acid (CAS 17270-50-7)
- [2-(pyridin-2-yl)ethyl]urea (CAS 20273-53-4)
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- 3-Amino-3-(2,4-dihydroxyphenyl)propanoic Acid (CAS 682804-10-0)
- 2-amino-1-(3-chloro-5-fluorophenyl)ethan-1-ol hydrochloride (CAS 1787928-74-8)
- Methyl piperidin-4-yl(propyl)carbamate (CAS 1178381-83-3)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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