1-(2,4-Dichlorophenyl)-3-[3-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]urea CAS 1809876-48-9
| CAS No. | 1809876-48-9 |
| Molecular Formula | C19H21BCl2N2O3 |
| Molecular Weight | 407.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(2,4-Dichlorophenyl)-3-[3-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]urea.
1-(2,4-Dichlorophenyl)-3-[3-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]urea (CAS 1809876-48-9), molecular formula C19H21BCl2N2O3 and molecular weight 407.10 g/mol, is a CATO reference standard with documented purity and traceability.
1-(2,4-Dichlorophenyl)-3-[3-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]urea (C19H21BCl2N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C19H21BCl2N2O3 |
| Molecular Weight | 407.10 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichlorophenyl Standards
- 1-(3,4-Dichlorophenyl)-3-[3-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]urea (CAS 1400222-60-7)
- 1-(2,6-Dichlorophenyl)-3-[3-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]urea (CAS 2096998-34-2)
- 2,4-Dichlorophenyl (3E)-3-{[(2,4-dichlorophenyl)methoxy]imino}propanoate (CAS 860787-60-6)
- 2,4-Dichlorophenyl (3Z)-3-{[(2,6-dichlorophenyl)methoxy]imino}propanoate (CAS 338395-32-7)
- 3-(2,6-Dichlorophenyl)-N-(2,5-dimethoxyphenyl)-5-methylisoxazole-4-carboxamide (CAS 331847-98-4)
- 3-(3,4-Dichlorophenyl)-5-phenoxy-[1,2,4]triazolo[4,3-c]quinazoline (CAS 477853-50-2)
- 4-(3,4-Dichlorophenyl)-5-{[3-(trifluoromethyl)phenyl]sulfanyl}-1,2,3-thiadiazole (CAS 400082-15-7)
- N-(3,5-dichlorophenyl)-1-(4-((furan-2-ylmethyl)thio)-3-nitrophenyl)methanimine (CAS 256521-69-4)
Recommended Standards
- (E)-3-(3,5-Dibromo-4-(3-(dimethylamino)propoxy)phenyl)acrylic acid (CAS 134276-56-5)
- 6,8-Dibromo-2-(4-methoxyphenyl)-3-methylquinoline (CAS 860783-95-5)
- 3-[1-[Difluoro[(Trifluoroethenyl)Oxy]Methyl]-1,2,2,2-Tetrafluoroethoxy]-2,2,3,3-Tetrafluoropropanamide (CAS 69804-18-8)
- 6-Bromo-3-(bromo(phenyl)methyl)-2-methoxyquinoline (CAS 924632-90-6)
- 3-(5-Methyl-3-indolyl)propanamide (CAS 54904-28-8)
- N-(furan-2-ylmethyl)-N-(1-(o-tolylcarbamoyl)cyclohexyl)nicotinamide (CAS 503561-70-4)
- 2-(Benzyloxy)-n-methoxy-n-methylacetamide (CAS 104863-68-5)
- 2,4-Dibromo-6-chloro-3-methoxyaniline (CAS 1160574-86-6)
- 3-(2-Fluorophenyl)-N-(4-methoxyphenyl)-[1,2,4]triazolo[4,3-c]quinazolin-5-amine (CAS 246021-96-5)
- 4-[(propan-2-yloxy)methyl]aniline (CAS 221532-15-6)
- 1-Cyclobutyl-1H-pyrazole-4-carboxylic Acid (CAS 1349718-35-9)
- 6,7-Dimethoxy-5-oxo-2,3,5,9b-tetrahydrothiazolo[2,3-a]isoindole-3-carboxylic acid (CAS 1170695-07-4)
- Methyl 2-chloro-5-[4-(methoxycarbonyl)phenyl]benzoate (CAS 1820613-86-2)
- Tau Peptide (304-318) trifluoroacetate salt (CAS 330456-49-0)
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