3-(9H-Fluoren-2-yl)-1-(1-methyl-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl)urea CAS 1796905-23-1
| CAS No. | 1796905-23-1 |
| Molecular Formula | C30H24N4O2 |
| Molecular Weight | 472.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-(9H-Fluoren-2-yl)-1-(1-methyl-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl)urea (CAS 1796905-23-1), molecular formula C30H24N4O2 and molecular weight 472.54 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-(9H-Fluoren-2-yl)-1-(1-methyl-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl)urea (C30H24N4O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 21.0, corresponding to approximately 21 ring(s) or double-bond equivalent(s). With a molecular weight of 472.54 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).
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 | C30H24N4O2 |
| Molecular Weight | 472.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 4 |
Related H Standards
- 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-morpholinophenyl)propanoic acid (CAS 1379882-11-7)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-bromo-3-chlorobenzoic acid (CAS 2243513-54-2)
- (9H-Fluoren-9-yl)methyl (9-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purin-6-yl)carbamate (CAS 87424-20-2)
- (9H-Fluoren-9-yl)methyl (S)-(1-(5-nitro-1H-benzo[d][1,2,3]triazol-1-yl)-1-thioxopropan-2-yl)carbamate (CAS 2293079-49-7)
- 2'-((9H-Fluoren-2-yl)carbamoyl)-4,4'-dichloro-[1,1'-biphenyl]-2-carboxylic acid (CAS 25698-56-0)
- 4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-1-(2-methylbenzyl)piperidine-4-carboxylic acid (CAS 916421-99-3)
- 4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-1-(3-methylbenzyl)piperidine-4-carboxylic acid (CAS 916421-97-1)
- 4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-1-(4-methylbenzyl)piperidine-4-carboxylic acid (CAS 916421-95-9)
Recommended Standards
- 1-Acetyl-L-prolyl-L-leucyl-N-(di-1H-imidazoL-2-ylmethyl)-glycinamide (CAS 148417-23-6)
- Isopropyl 6-methyl-4-(3-(2-methyl-2,3-dihydrobenzofuran-5-yl)-1-phenyl-1H-pyrazol-4-yl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 618410-85-8)
- 1-(4-(9H-Carbazol-9-yl)phenyl)-3-amino-9H-fluorene-2,4-dicarbonitrile (CAS 1044509-95-6)
- N-Benzyl-2-imino-1-(3-morpholinopropyl)-5-oxo-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide (CAS 510761-78-1)
- 2-Hydrazinoquinazolin-4(3H)-one (CAS 59342-31-3)
- 2,5-Bis((2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolin-9-yl)methylene)cyclopentan-1-one (CAS 125594-50-5)
- N-(4-((2,4-Diaminopyrimidin-5-yl)methyl)-2-methoxyphenyl)acetamide (CAS 89445-93-2)
- 5,6-Diamino-1,3-diethyl-1H-benzo[d]imidazol-2(3H)-one (CAS 690638-80-3)
- Methyl 2-(6-bromopyridin-2-yl)butanoate (CAS 1956335-95-7)
- 2H-1,4-Benzoxazin-3(4H)-one, 2-(β-D-glucopyranosyloxy)-4-hydroxy- (CAS 22260-47-5)
- N-Benzyl-2-chloro-N-ethyl-4-nitrobenzamide (CAS 349093-97-6)
- 6-Imino-1-methyl-1,6-dihydro-1,3,5-triazine-2,4-diamine (CAS 6291-82-3)
- 4-(Difluoromethyl)-5-iodo-6-methoxynicotinamide (CAS 1805603-58-0)
- Erythropoietin Mimetic Peptide Sequence 20 (CAS 203397-62-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com