1,3-Bis(4-hydroxyphenyl)-Urea CAS 2298-28-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2298-28-4 |
| Molecular Formula | C13H12N2O3 |
| Molecular Weight | 244.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,3-Bis(4-hydroxyphenyl)-Urea (CAS 2298-28-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H12N2O3. Molecular weight: 244.25 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C13H12N2O3 |
| Molecular Weight | 244.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Bis Standards
- 4-(4-Hydroxyphenyl)-2-methoxybenzoic acid (CAS 1261892-57-2)
- 4-(4-Hydroxyphenyl)-3-methoxybenzoic acid (CAS 1261901-65-8)
- 2-Hydroxyphenyl 3-methoxybenzoate (CAS 5876-99-3)
- 3-Hydroxyphenyl 3-methoxybenzoate (CAS 723261-61-8)
- 4-Hydroxyphenyl 4-methoxybenzoate (CAS 28099-28-7)
- 2,2-Bis(4-hydroxyphenyl)propanol (CAS 142648-65-5)
- 1,2-Bis(4-hydroxyphenyl)-2-hydroxypropane (CAS 154928-56-0)
- 3-(3-Hydroxyphenyl)-1-Phenylthiourea (CAS 17073-35-7)
Recommended Standards
- 1-(5-Hydroxy-1-phenyl-1H-pyrazol-4-yl)butane-1,3-dione (CAS 321574-37-2)
- 1-[4-(Trifluoromethyl)phenyl]-2-hexanone (CAS 477202-15-6)
- 1-(3-Methoxy-4-(pyrimidin-2-yloxy)phenyl)ethan-1-one (CAS 850019-73-7)
- Benzyl 2-methyloxirane-2-carboxylate (CAS 1447734-06-6)
- 2-((3-(Trifluoromethyl)phenyl)amino)thiazole-4-carbaldehyde (CAS 126533-84-4)
- 4-Methyl-[1,4']bipiperidinyl 4-(4-methyl-piperidin-1-yl)-piperidine 4-(4-methylpiperidin-1-yl)piperidine 4-(4-methylpiperidin-1-yl)-piperidine 4-(4-Methyl-piperidin-1-yl-piperidine 4-(4-Methylpiperidino)piperidine 4-Methyl-1,4'-bipiperidine 116797-02-5 (CAS 116797-02-5)
- Methyl 2-methoxy-5-(trifluoromethyl)nicotinate (CAS 729589-73-5)
- N-(2,4-Dimethyl-phenyl)-2-(4-ethyl-5-mercapto-4H-[1,2,4]triazol-3-yl)-acetamide (CAS 924969-62-0)
- 3,3-Dimethylpyrrolidine-2-thione (CAS 127103-83-7)
- RGD-targeted Proapoptotic Peptide trifluoroacetate salt (CAS 2243207-09-0)
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 13829788188 / jacky.chen@cato-chem.com