3-((3-Cycloheptyl-4-imino-6,7-dimethoxy-3,4-dihydroquinazolin-2-yl)thio)-1-phenylpropan-1-one CAS 691858-11-4
| CAS No. | 691858-11-4 |
| Molecular Formula | C26H31N3O3S |
| Molecular Weight | 465.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-((3-Cycloheptyl-4-imino-6,7-dimethoxy-3,4-dihydroquinazolin-2-yl)thio)-1-phenylpropan-1-one (CAS 691858-11-4), molecular formula C26H31N3O3S and molecular weight 465.61 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 3-((3-Cycloheptyl-4-imino-6,7-dimethoxy-3,4-dihydroquinazolin-2-yl)thio)-1-phenylpropan-1-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 465.61 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C26H31N3O3S |
| Molecular Weight | 465.61 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cycloheptyl Standards
- N-Cycloheptyl-5-(4-fluorobenzyl)-3-oxo-2-phenyl-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamide (CAS 921551-07-7)
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Recommended Standards
- 1-(4-Hydroxy-7-phenylthieno[3,2-d]pyrimidin-2-yl)-N-(2-(piperidin-1-yl)ethyl)piperidine-3-carboxamide (CAS 1242876-29-4)
- 4-((2,5-Dimethylphenyl)thio)-1-(4-methoxyphenyl)-2-phenyl-6,7-dihydro-1H-indole-5-carbaldehyde (CAS 477887-80-2)
- Lacidipine-D10 (CAS 103890-78-4 (Unlabelled))
- N-(6-(tert-butyl)-3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-2-phenylquinoline-4-carboxamide (CAS 332176-01-9)
- 6-(4-(Hydroxymethyl)phenyl)naphthalen-2-ol (CAS 1017858-96-6)
- 8-Chloro-[1,2,4]triazolo[4,3-a]pyrazine-3-carboxylic acid (CAS 1935512-03-0)
- 4,4-Bis(trifluoromethyl)pyrrolidine-2-carboxylic acid (CAS 1354950-53-0)
- 4282-42-2 1-Iodononane Nonane, 1-iodo- EINECS 224-286-3 Nonyl iodide n-Nonyl iodide 1-n-Nonyl iodide NSC 5520 (CAS 4282-42-2)
- tert-Butyl 6-chloro-1H-pyrrolo[3,2-c]pyridine-1-carboxylate (CAS 1649468-62-1)
- 6-Methoxynaphthalene-1-sulfonyl chloride (CAS 66413-57-8)
- 1-(Methoxymethyl)-4-(methylthio)-1h-indol-6-amine (CAS 1481506-49-3)
- 1,3-Dimethyl-5-{[6-(4-methylphenyl)imidazo[2,1-b][1,3]thiazol-5-yl]methylene}-2,4,6(1H,3H,5H)-pyrimidinetrione (CAS 861213-00-5)
- (4-(Trifluoromethoxy)pyridin-3-yl)methanamine (CAS 1361748-90-4)
- Liraglutide (13-21) TFA Salt (CAS CATO-C4X-19928)
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