5-(2-Hydroxy-2-(thiophen-2-yl)ethyl)-1H-pyrazol-3(2H)-one CAS 95060-78-9
| CAS No. | 95060-78-9 |
| Molecular Formula | C9H10N2O2S |
| Molecular Weight | 210.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-(2-Hydroxy-2-(thiophen-2-yl)ethyl)-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.
CATO supplies 5-(2-Hydroxy-2-(thiophen-2-yl)ethyl)-1H-pyrazol-3(2H)-one (CAS 95060-78-9), a certified reference material (molecular formula C9H10N2O2S, MW 210.25 g/mol) for analytical method development and quality control.
5-(2-Hydroxy-2-(thiophen-2-yl)ethyl)-1H-pyrazol-3(2H)-one (C9H10N2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone 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 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).
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.
Physical & Chemical Properties
| Molecular Formula | C9H10N2O2S |
| Molecular Weight | 210.25 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Hydroxy Standards
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Recommended Standards
- 4-Methyl-7-nitro-3,4-dihydro-2H-benzo[b][1,4]thiazine (CAS 80887-95-2)
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- 5,6-Dimethoxy-1H-benzimidazole-2-thiol (CAS 74004-74-3)
- 4-Fluoro-2-(4-morpholinylmethyl)aniline (CAS 503160-33-6)
- (S)-1-(2-methylbenzyl)pyrrolidin-3-ol (CAS 1289584-96-8)
- 3-Morpholino-5-(trifluoromethyl)picolinic acid (CAS 1980040-34-3)
- 4-(Dimethylamino)-4-(m-tolyl)cyclohexan-1-one (CAS 760891-97-2)
- 2-(Isopropyl(pyridin-3-ylmethyl)amino)acetic acid (CAS 1183065-22-6)
- 4-(4-Methylphenyl)-3-[1-(3-phenylpropanoyl)piperidin-4-yl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775459-00-1)
- 8-(Allyloxy)-1,4-dioxaspiro[4.5]Decane (CAS 192870-65-8)
- Nitronium hexafluorophosphate, 95% (CAS 19200-21-6)
- MEthyl 4-amino-6-methyl-1-phenyl-1h-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 1269662-34-1)
- Petroselinic Acid-Methyl Ester (CAS 2777-58-4)
- Des-Ile17-Tirzepatide (CAS CATO-CPTD788956)
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