4-(2-Hydroxyethyl)-3-methyl-2-pyrazolin-5-one CAS 7721-54-2
| CAS No. | 7721-54-2 |
| Molecular Formula | C6H10N2O2 |
| Molecular Weight | 142.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-(2-Hydroxyethyl)-3-methyl-2-pyrazolin-5-one 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.
CATO supplies 4-(2-Hydroxyethyl)-3-methyl-2-pyrazolin-5-one (CAS 7721-54-2), a certified reference material (molecular formula C6H10N2O2, MW 142.16 g/mol) for analytical method development and quality control.
The molecular framework of 4-(2-Hydroxyethyl)-3-methyl-2-pyrazolin-5-one (C6H10N2O2) is characterized by an amino-acid-derived structure, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H10N2O2 |
| Molecular Weight | 142.16 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 2 |
Related Hydroxyethyl Standards
- 2-(2-Hydroxyethyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one (CAS 56226-25-6)
- 4-(2-Hydroxyethyl)-5-methyl-1H-pyrazol-3-ol (CAS 65287-96-9)
- 2-(2-Hydroxyethyl)cyclohexan-1-one (CAS 10198-27-3)
- 3-(2-Hydroxyethyl)cyclohexan-1-one (CAS 5502-11-4)
- 4-(2-hydroxyethyl)cyclohexan-1-one (CAS 32863-01-7)
- 2-Hydroxyethyl Phosphate (CAS 1892-26-8)
- 4-(2-Hydroxyethyl)-3-methylisoxazol-5(4H)-one (CAS 10244-78-7)
- 3-(1-Hydroxyethyl)-4-methyl-1H-1,2,4-triazol-5(4H)-one (CAS 1446487-94-0)
Recommended Standards
- 4-(2-Aminoethyl)-5-methylisoxazol-3(2H)-one (CAS 58728-68-0)
- 4-(2-Aminoethyl)-3-methylisoxazol-5(2H)-one (CAS 952958-72-4)
- 4-(3-Aminopropyl)-4,5-dihydro-1,2-oxazol-5-one (CAS 25055-43-0)
- 3-Methylphthalonitrile (CAS 36715-97-6)
- N-Benzyl-N-(cyclohexylmethyl)pyrrolidin-3-amine (CAS 820984-33-6)
- 2-((2-(Diethylamino)ethyl)thio)pyrimidin-4(1H)-one (CAS 2434-52-8)
- tert-Butyl (1R,4R)-5-oxo-7-azabicyclo[2.2.1]hept-2-ene-7-carboxylate (CAS 635298-67-8)
- Flurbiprofen Impurity 78 (CAS CATO-C4X-144478)
- N-(5-Chloro-2,4-dimethoxyphenyl)-3-(furan-2-yl)acrylamide (CAS 853349-21-0)
- 1-(2-Methylpyrazolo[1,5-a]pyrazin-4-yl)piperidine-3-carboxylic acid (CAS 1708013-11-9)
- 4-(3-Chlorophenyl)-N-methylpiperazine-1-carbothioamide (CAS 457093-73-1)
- 5,6-Diamino-2-(methylamino)pyrimidin-4(1H)-one (CAS 61693-25-2)
- 6'-Amino-3'-ethyl-2-oxo-1-propyl-2'H-spiro[indoline-3,4'-pyrano[2,3-c]pyrazole]-5'-carbonitrile (CAS 939893-64-8)
- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com