1,3-Di(naphthalen-1-yl)urea CAS 607-56-7
| CAS No. | 607-56-7 |
| Molecular Formula | C21H16N2O |
| Molecular Weight | 312.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,3-Di(naphthalen-1-yl)urea (CAS 607-56-7), molecular formula C21H16N2O and molecular weight 312.36 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1,3-Di(naphthalen-1-yl)urea (C21H16N2O) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C21H16N2O |
| Molecular Weight | 312.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Di Standards
- 2-(Naphthalen-1-ylmethoxy)-1-naphthaldehyde (CAS 692771-20-3)
- N-(Naphthalen-2-ylmethyl)-5-(pyrimidin-5-yl)pyridin-3-amine (CAS 767342-31-4)
- 2-(Naphthalen-2-ylthio)-5-(trifluoromethyl)-1,3,4-thiadiazole (CAS 62616-93-7)
- Ethyl 8-(naphthalen-2-yl)-8-oxooctanoate (CAS 362669-46-3)
- 1,2-Di(naphthalen-1-yl)ethane-1,2-diamine (CAS 618092-22-1)
- 8-[(E)-2-[1-(Naphthalen-1-yl)ethylidene]hydrazin-1-yl]quinoline (CAS 478258-21-8)
- N-(Naphthalen-2-ylmethyl)-[3,4'-bipyridin]-5-amine (CAS 821784-07-0)
- 4-(Naphthalen-1-yl)-1,4-dihydrobenzo[4,5]imidazo[1,2-a][1,3,5]triazin-2-amine (CAS 380494-16-6)
Recommended Standards
- 1,3-Bis(2-hydroxy-5-methylphenyl)tetrahydropyrimidin-2(1H)-one (CAS 84379-39-5)
- 1,4,5-Triphenyl-1H-pyrazol-3(2H)-one (CAS 5022-92-4)
- 1,2,4,9-Tetramethoxy-8-methylanthracene (CAS 834867-35-5)
- 1-[1-(tert-Butoxycarbonyl)-4-piperidinyl]-5-oxo-3-pyrrolidinecarboxylic acid (CAS 937601-51-9)
- 5,5'-Oxydiisophthalic acid (CAS 1817605-38-1)
- 5-Cyanoisothiazole-3-carboxylic acid (CAS 91319-29-8)
- 2-Amino-4-(3-iodophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile (CAS 337496-56-7)
- Finerenone Impurity 193 (CAS CATO-C4X-2880193)
- Ethyl 6-chloro-4-ethoxypyridine-3-carboxylate (CAS 1171502-57-0)
- 6,7-Dimethyl-2,3-di(2-pyridyl)quinoxaline (CAS 6627-38-9)
- 4-Methyl-2-(4-methylphenoxy)aniline (CAS 98054-53-6)
- 5-(6-Chloropyridin-3-yl)-4-methyl-4H-1,2,4-triazole-3-thiol (CAS 306936-79-8)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-fluorophenyl)propanoic acid (CAS 678991-28-1)
- Hexapeptide-1 (CAS CATO-CPTD788821)
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