2-(2,3-Dihydroxyphenyl)-1,5-dimethyl-1H-pyrazol-3(2H)-one CAS 64317-68-6
| CAS No. | 64317-68-6 |
| Molecular Formula | C11H12N2O3 |
| Molecular Weight | 220.22 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.
2-(2,3-Dihydroxyphenyl)-1,5-dimethyl-1H-pyrazol-3(2H)-one (CAS 64317-68-6), molecular formula C11H12N2O3 and molecular weight 220.22 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(2,3-Dihydroxyphenyl)-1,5-dimethyl-1H-pyrazol-3(2H)-one (C11H12N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 220.22 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 2-(2,3-Dihydroxyphenyl)-1,5-dimethyl-1H-pyrazol-3(2H)-one 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 | C11H12N2O3 |
| Molecular Weight | 220.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 2 |
Related Dihydroxyphenyl Standards
- N-(2,4-Dihydroxyphenyl)-2,2,2-Trifluoro-Acetamide (CAS 761455-52-1)
- 1-(3,4-Dihydroxyphenyl)-2-(pyrrolidin-1-yl)ethanone (CAS 16899-82-4)
- 1-{3-[(3,5-Dihydroxyphenyl)methyl]azetidin-1-yl}ethan-1-one (CAS 1801243-46-8)
- 1-(2,4-Dihydroxyphenyl)-2-(furan-2-yl)ethanone (CAS 452346-10-0)
- Propyl 3-(3,4-dihydroxyphenyl)acrylate (CAS 83504-42-1)
- 1-(3,5-Dihydroxyphenyl)heptan-1-one (CAS 39192-54-6)
- (3,4-Dihydroxyphenyl)(morpholino)methanone (CAS 656804-32-9)
- (2,4-Dihydroxyphenyl)(pyridin-3-yl)methanone (CAS 64302-24-5)
Recommended Standards
- 2-(2,3-Dihydro-1H-inden-2-yl)malonic acid (CAS 81402-20-2)
- 2-(2-Oxo-3-phenylimidazolidin-1-yl)acetic acid (CAS 885955-09-9)
- 2-(2-(Methoxymethyl)-1H-benzo[d]imidazol-1-yl)acetic acid (CAS 893631-62-4)
- 2-(2-Oxo-4-phenylimidazolidin-1-yl)acetic acid (CAS 90032-38-5)
- N-(2,4-Dimethoxyphenyl)-2-((4-ethyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 577981-98-7)
- 2-((5,7-Dichloro-2-methylquinolin-8-yl)oxy)acetonitrile (CAS 88757-24-8)
- 5-fluoro-2-tetralone (CAS 548771-68-2)
- Ethyl 2-[2-(2-phenylacetyl)hydrazino]nicotinate (CAS 1353504-68-3)
- HDAC-IN-21 (CAS 660847-06-3)
- 2-(4-Methyl-4H-1,2,4-triazol-3-yl)ethan-1-ol (CAS 1517255-85-4)
- 1-ethyl-3-methyl-2,5-dihydro-1H-pyrrole-2,5-dione (CAS 31217-72-8)
- N-(2-Methoxybenzyl)-5-nitrofuran-2-carboxamide (CAS 313981-44-1)
- Solasodine hydrochloride (CAS 6106-33-8)
- Pancreatic Polypeptide (31-36), amide, human (CAS 74012-13-8)
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