5-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)amino)-5-oxopentanoic acid CAS 37833-20-8
| CAS No. | 37833-20-8 |
| Molecular Formula | C16H19N3O4 |
| Molecular Weight | 317.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)amino)-5-oxopentanoic acid (C16H19N3O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 5-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)amino)-5-oxopentanoic acid (CAS 37833-20-8), a certified reference material (molecular formula C16H19N3O4, MW 317.34 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 5-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)amino)-5-oxopentanoic acid 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 | C16H19N3O4 |
| Molecular Weight | 317.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 3 |
Related Dimethyl Standards
- Ethyl 2-(2,3-dimethyl-4-oxo-3,4,5,6-tetrahydro-2H-2,6-methanobenzo[g][1,3]oxazocin-5-yl)-2-oxoacetate (CAS 6297-35-4)
- 6,7-Dimethyl 5-phenyl-1H,3H-pyrrolo[1,2-c][1,3]thiazole-6,7-dicarboxylate (CAS 339102-17-9)
- 4,8-Dimethyl-2-[3-(trifluoromethyl)phenoxy]quinoline (CAS 338417-00-8)
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- Methyl 3-(2,3-dimethyl-6-oxo-4-(trifluoromethyl)-2,6-dihydro-7H-pyrazolo[3,4-b]pyridin-7-yl)propanoate (CAS 1018128-14-7)
- 4,4-Dimethyl-2-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-4,5-dihydrothiazole (CAS 2434716-29-5)
Recommended Standards
- 4-Hydroxy-6-(4-methoxyphenyl)-2-(3-methylphenyl)pyrimidine-5-carbonitrile (CAS 477859-02-2)
- 5,6-Bis(4-methoxyphenyl)pyridazine-3-carbonitrile (CAS 375793-04-7)
- 4-(4-Methoxyphenyl)-6-(methylamino)-2-(pyridin-2-yl)pyrimidine-5-carbonitrile (CAS 320418-93-7)
- 5-[2-(4-Methoxyanilino)vinyl]-3-phenyl-4-isoxazolecarbonitrile (CAS 303995-74-6)
- N-Glutarylglycine (CAS 17686-38-3)
- 5-(2-Fluoropropan-2-yl)isoxazol-3-amine (CAS 1188908-86-2)
- 3-(Furan-2-yloxy)-5-hydrazinyl-1H-pyrazole (CAS 780717-03-5)
- N-(3-formylphenyl)-4-methylbenzenesulfonamide (CAS 174208-90-3)
- (E)-N,N-Dimethyl-4-(2-(pyrimidin-4-yl)vinyl)aniline (CAS 917885-26-8)
- 1-(1-(4-Ethoxyphenyl)-5-oxopyrrolidin-3-yl)-3-(thiophen-2-ylmethyl)urea (CAS 894014-46-1)
- Methyl 4-(benzyloxy)-1-methyl-1H-indole-2-carboxylate (CAS 167479-10-9)
- 4-((3-Methylpiperidin-1-yl)methyl)benzenethiol (CAS 1443350-91-1)
- 1,4-Dihydro-6-Fluoro-1-(2-Fluoroethyl)-4-Oxo-7-(1-Piperazinyl)-1,8-Naphthyridine-3-Carboxylic Acid (CAS 84209-34-7)
- Neuropeptide W-23 (human) (CAS 383415-79-0)
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