3-Stearoyl-2-thioxo-2,3-dihydroquinazolin-4(1H)-one CAS 805323-92-6
| CAS No. | 805323-92-6 |
| Molecular Formula | C26H40N2O2S |
| Molecular Weight | 444.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Stearoyl-2-thioxo-2,3-dihydroquinazolin-4(1H)-one (CAS 805323-92-6) is a high-purity analytical reference standard with the molecular formula C26H40N2O2S and a molecular weight of 444.67 g/mol.
Structurally, 3-Stearoyl-2-thioxo-2,3-dihydroquinazolin-4(1H)-one (C26H40N2O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 444.67 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C26H40N2O2S |
| Molecular Weight | 444.67 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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- rac 2-Stearoyl-3-chloropropanediol, 95% (CAS 1329611-08-6)
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Recommended Standards
- 3-Chloro-2-[(1E)-(2,4-dichlorophenyl)(2-phenylhydrazin-1-ylidene)methyl]-5-(trifluoromethyl)pyridine (CAS 306977-42-4)
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- 4-Chloro-N-(4-chloro-phenyl)-N-(6-chloro-4-trifluoromethyl-pyridin-2-yl)-benzamidine (CAS 1311283-67-6)
- 2-((3-(2-((2-(Dimethylamino)ethyl)thio)-6-(thiophen-2-yl)pyrimidin-4-yl)phenyl)thio)-N,N-dimethylethanamine (CAS 129224-86-8)
- N-(5-Chloro-2-(hydroxymethyl)phenyl)acetamide (CAS 150869-44-6)
- 3-Methyl-1-propyl-N-((1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl)methyl)-1H-pyrazol-4-amine hydrochloride (CAS 1856082-17-1)
- N2-Allyl-N4-(5-chloro-2-hydroxyphenyl)-L-asparagine (CAS 1096689-75-6)
- (S)-2-Amino-2-(3-bromophenyl)ethan-1-ol hydrochloride (CAS 2095772-98-6)
- Methyl 4-bromo-2-methoxy-3-methylbenzoate (CAS 1427413-96-4)
- 1-Vinyl-1H-pyrazole-4-carbaldehyde (CAS 864723-38-6)
- 1-[2-(4-Chlorophenyl)-4-methyl-1,3-thiazol-5-yl]ethyl N-(propan-2-yl)carbamate (CAS 478065-56-4)
- 2-Chloro-6-fluoro-N-(furan-2-ylmethyl)-N-(tetrahydro-2H-pyran-4-yl)benzamide (CAS 1448134-84-6)
- 1-(3-Chloro-4-fluorophenyl)-5-oxopyrrolidine-3-carbonitrile (CAS 1017458-51-3)
- [Formaldehyde Schiff-base]-Semaglutide Impurity 136 X TFA Salt (CAS CATO-C4X-2226136)
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