4-(Benzylthio)-5-morpholino-2-phenylpyridazin-3(2H)-one CAS 5273-14-3
| CAS No. | 5273-14-3 |
| Molecular Formula | C21H21N3O2S |
| Molecular Weight | 379.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C21H21N3O2S, 4-(Benzylthio)-5-morpholino-2-phenylpyridazin-3(2H)-one contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 379.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
4-(Benzylthio)-5-morpholino-2-phenylpyridazin-3(2H)-one (CAS 5273-14-3), molecular formula C21H21N3O2S and molecular weight 379.48 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C21H21N3O2S |
| Molecular Weight | 379.48 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Benzylthio Standards
- 2-(Benzylthio)-N-(2-((3-cyclopropyl-1,2,4-oxadiazol-5-yl)methyl)phenyl)acetamide (CAS 1797959-31-9)
- 5-(Benzylthio)-2-ethyl-8,9-dimethoxy-[1,2,4]triazolo[1,5-c]quinazoline (CAS 685108-54-7)
- 2-(Benzylthio)-4-(4-methoxyphenoxy)thieno[3,2-d]pyrimidine (CAS 478067-47-9)
- 2-(Benzylthio)-4,5-diphenyl-1-(prop-2-yn-1-yl)-1H-imidazole (CAS 338412-81-0)
- 5,5-Bis(benzylthio)pentane-1,2,3,4-tetraol (CAS 64780-60-5)
- 2-(Benzylthio)-4-(p-tolylthio)thieno[3,2-d]pyrimidine (CAS 478067-45-7)
- 2-(Benzylthio)-4-(pyrrolidin-1-yl)benzo[4,5]thieno[3,2-d]pyrimidine (CAS 478029-89-9)
- 4-(Benzylthio)-2-phenyl-5-(piperidin-1-yl)pyridazin-3(2H)-one (CAS 5273-15-4)
Recommended Standards
- 4-(2-Phenyl-6-((phenylsulfinyl)methyl)pyrimidin-4-yl)morpholine (CAS 320421-35-0)
- 4-[4-(Thiophen-2-yl)pyrimidin-2-yl]phenyl N-cyclohexylcarbamate (CAS 477862-61-6)
- 2-Phenyl-4-(pyrrolidin-1-yl)-6-tosylpyrimidine (CAS 478080-71-6)
- 4-{6-[(3-methoxyphenyl)sulfanyl]-2-phenylpyrimidin-4-yl}morpholine (CAS 339019-30-6)
- 3-((4-Hydroxy-1-(methylthio)butan-2-yl)amino)thietane 1,1-dioxide (CAS 1873641-99-6)
- 2-{1-[(prop-2-en-1-ylsulfanyl)methyl]cyclopropyl}acetic acid (CAS 1001907-54-5)
- 4-(4-Benzyl-1-piperazino)-2-bromophenol (CAS 1171917-64-8)
- 2-Propenoic acid, polymer with ethenylbenzene and 2-propenenitrile (CAS 24980-16-3)
- Cobalt(1+), dichlorotetrakis(pyridine)-, chloride (1:1), (OC-6-12)- (CAS 27883-34-7)
- 18:1 dimethylacetal (CAS 15677-71-1)
- 4-(trans-4-n-Propylcyclohexyl)benzoic acid (CAS 65355-29-5)
- 2-(Chloromethyl)-N-(4-methoxyphenyl)-N-methylquinazolin-4-amine (CAS 827031-05-0)
- 3,5-Difluoro-4-methoxybenzyl Alcohol (CAS 706786-41-6)
- Liraglutide Impurity 14 TFA Salt (CAS CATO-C4X-199214)
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