2-Chloro-1-(5-(furan-2-yl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)ethan-1-one CAS 790725-77-8
| CAS No. | 790725-77-8 |
| Molecular Formula | C13H11ClN2O2S |
| Molecular Weight | 294.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-Chloro-1-(5-(furan-2-yl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)ethan-1-one (CAS 790725-77-8), a certified reference material (molecular formula C13H11ClN2O2S, MW 294.76 g/mol) for analytical method development and quality control.
Structurally, 2-Chloro-1-(5-(furan-2-yl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)ethan-1-one (C13H11ClN2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 294.76 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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 | C13H11ClN2O2S |
| Molecular Weight | 294.76 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 7-Chloro-N-(2-furylmethyl)-4-methoxy-1,3-benzothiazol-2-amine (CAS 1105189-55-6)
- 2-((5-Chloro-N-ethyl-1-methyl-1h-imidazole)-4-sulfonamido)-N-methylacetamide (CAS 1183569-99-4)
- 2-Chloro-5-((2-(methylthio)pyrimidin-4-yl)methyl)benzoic acid (CAS 1394349-31-5)
- 2-Chloro-1-[3-(furan-2-yl)-5-(thiophen-2-yl)-4,5-dihydro-1h-pyrazol-1-yl]ethan-1-one (CAS 796106-54-2)
- 6-[(5-Chloro-1,3-thiazol-2-yl)methyl]-5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 861209-53-2)
- Ethyl 4-chloro-4c,5,5a,6-tetrahydrocyclopropa[4',5']cyclopenta[1',2':4,5]thieno[2,3-d]pyrimidine-5-carboxylate (CAS 2260527-29-3)
- N-(6-Chloro-9H-fluoren-2-yl)acetamide (CAS 92433-41-5)
- 2-(6-chloro-3-pyridinyl)-5-methyl-1,3-thiazol-4-yl cyclopropanecarboxylate 400080-98-0 KS-000035OH (CAS 400080-98-0)
Recommended Standards
- 2-Amino-N-(3-(2-chlorobenzoyl)thiophen-2-yl)acetamide (CAS 36811-56-0)
- 2-Acetamido-N-(4-chlorophenyl)thiophene-3-carboxamide (CAS 338750-39-3)
- 2-[(3-Chlorophenyl)methylene]hydrazide, 2-amino-4-methyl-5-thiazolecarboxylic acid (CAS 469869-90-7)
- 2-[(2-Chloroacetyl)amino]-5-phenyl-3-thiophenecarboxamide (CAS 554440-03-8)
- Methyl 2-((2-methoxyethyl)amino)-2-methylpropanoate (CAS 959016-47-8)
- 2-(4-Methoxyphenyl)benzofuran-4-ol (CAS 1449687-99-3)
- 2-{[(5-bromo-3-methylpyridin-2-yl)amino]methyl}-6-methoxyphenol (CAS 298217-68-2)
- 3-((4-Nitrobenzyl)amino)propan-1-ol (CAS 1038231-31-0)
- Methyl 2-(3-bromophenyl)-2-hydroxyacetate (CAS 860771-95-5)
- 1-{1H-pyrrolo[2,3-b]pyridine-6-carbonyl}-4-(2,2,2-trifluoroethyl)piperazine (CAS 1952123-25-9)
- 1-(Benzo[d][1,3]dioxol-5-yl)-3-((4-chlorophenyl)amino)propan-1-one (CAS 882748-32-5)
- 2,4,6-Trimethyl-n-propylbenzene-1-sulfonamide (CAS 189341-65-9)
- N-(5-(4-Chlorophenyl)-1,3,4-oxadiazol-2-yl)benzimidamide (CAS 132380-89-3)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
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