2-(2-Hydroxyethyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one CAS 56226-25-6
| CAS No. | 56226-25-6 |
| Molecular Formula | C6H10N2O2 |
| Molecular Weight | 142.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-(2-Hydroxyethyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-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 2-(2-Hydroxyethyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one (CAS 56226-25-6), a certified reference material (molecular formula C6H10N2O2, MW 142.16 g/mol) for analytical method development and quality control.
Structurally, 2-(2-Hydroxyethyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one (C6H10N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 142.16 g/mol, it falls into the low-molecular-weight range. 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.
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.) | 1973 |
| Nitrogen Atoms | 2 |
Related Hydroxyethyl Standards
- 4-(2-Hydroxyethyl)-3-methyl-2-pyrazolin-5-one (CAS 7721-54-2)
- 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
- 2-(2-(Hydroxymethyl)-1h-imidazol-1-yl)ethan-1-ol (CAS 79319-04-3)
- 2-(4-Isocyanophenyl)acetonitrile (CAS 216063-67-1)
- 2-(1-Aminoethyl)-4-methyloxazol-5(4H)-one (CAS 791050-65-2)
- 2-Ethynyl-1H-benzo[d]imidazole (CAS 53243-15-5)
- 2-[4-(sec-Butyl)phenoxy]-3-chloroaniline (CAS 946772-74-3)
- Ethyl 4,5,6,7-Tetrahydro-1H-indole-2-carboxylate (CAS 65880-18-4)
- 2-Bromo-5-fluoro-4-hydroxybenzonitrile (CAS 1805589-51-8)
- 6-Bromo-2-(methylsulfonyl)-1,2,3,4-tetrahydroisoquinoline (CAS 1046816-12-9)
- 1-Fluoro-4-iodo-2-methoxybenzene (CAS 773855-64-4)
- 3-(4,5-Dichloro-6-oxo-1,6-dihydropyridazin-1-yl)-1lambda6-thiolane-1,1-dione (CAS 867329-88-2)
- Tert-butyl 2-((3-chloro-4-fluorophenyl)(imino)methyl)hydrazine-1-carboxylate (CAS 1053655-93-8)
- 5-Oxa-2-azaspiro[3.5]nonane (CAS 138387-19-6)
- 2-Chloro-6-(methoxycarbonyl)benzoic acid (CAS 75990-94-2)
- Insulin Degludec Impurity 18 (CAS CATO-C4X-215718)
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