1-Acetyl-2,5-dimethylpyrazolidin-3-one CAS 33651-74-0
| CAS No. | 33651-74-0 |
| Molecular Formula | C7H12N2O2 |
| Molecular Weight | 156.18 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-Acetyl-2,5-dimethylpyrazolidin-3-one.
CATO supplies 1-Acetyl-2,5-dimethylpyrazolidin-3-one (CAS 33651-74-0), a certified reference material (molecular formula C7H12N2O2, MW 156.18 g/mol) for analytical method development and quality control.
Structurally, 1-Acetyl-2,5-dimethylpyrazolidin-3-one (C7H12N2O2) 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 156.18 g/mol, it falls into the medium-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.
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 | C7H12N2O2 |
| Molecular Weight | 156.18 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 2 |
Related Acetyl Standards
- 1-Acetyl-2,4-dimethylpyrazolidin-3-one (CAS 33651-72-8)
- 1-Acetyl-5,5-dimethylpyrazolidin-3-one (CAS 49629-12-1)
- 2-Acetyl-5,5-dimethylpyrazolidin-3-one (CAS 49629-18-7)
- (1,2-Dimethylpyrazolidin-4-yl)methanamine (CAS 155429-88-2)
- 2,5-Dimethylpyrazolidin-3-one (CAS 54945-11-8)
- 5,5-Dimethylpyrazolidin-3-one (CAS 42953-82-2)
Recommended Standards
- 1-Acetyl-2-pyrrolidinecarboxamide (CAS 30130-35-9)
- 1-[2-(methylamino)ethyl]pyrrolidine-2,5-dione (CAS 683205-89-2)
- 1-Acetyl-3-ethylimidazolidin-2-one (CAS 297143-82-9)
- 1,8-Dioxaspiro[4.5]decan-4-one (CAS 2137765-75-2)
- 1-{2-[6-(3,4-dimethoxyphenyl)-7-methylpyrazolo[1,5-a]pyrimidin-2-yl]thiophen-3-yl}-2,5-dimethyl-1H-pyrrole (CAS 439111-91-8)
- 6-(4-Bromophenyl)-6-oxohexanenitrile (CAS 61719-38-8)
- N-(2,5-Dimethoxyphenyl)-2-[4-(5-methyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidin-2-yl]acetamide (CAS 1775485-07-8)
- Benzo[d]thiazole-2(3H)-selenone (CAS 10200-72-3)
- 2-[4-(ethylsulfamoyl)phenyl]acetic acid (CAS 521314-04-5)
- 1-(2-Fluorophenyl)ethane-1-sulfonamide (CAS 1250852-33-5)
- 4-(trifluoromethyl)cyclohexane-1-sulfonyl chloride (CAS 1343053-89-3)
- 3-(2-Chloro-6-fluorobenzyl)-4-hydroxy-1-(prop-2-yn-1-yl)pyridin-2(1H)-one (CAS 320424-25-7)
- 1-Oxiranyl-1,2-ethanediol Diacetate 1330277-54-7 (CAS 1330277-54-7)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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