1,3-Bis(4-methoxyphenyl)urea CAS 1227-44-7
| CAS No. | 1227-44-7 |
| Molecular Formula | C15H16N2O3 |
| Molecular Weight | 272.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,3-Bis(4-methoxyphenyl)urea (CAS 1227-44-7), molecular formula C15H16N2O3 and molecular weight 272.30 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C15H16N2O3, 1,3-Bis(4-methoxyphenyl)urea contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 272.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures 1,3-Bis(4-methoxyphenyl)urea under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H16N2O3 |
| Molecular Weight | 272.30 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
- N-(3-Methoxyphenyl)-2-((1-methyl-1H-pyrrol-2-yl)methylene)hydrazinecarboxamide (CAS 119033-92-0)
- 1,3-Bis(2-methoxyphenyl)urea (CAS 1226-63-7)
- (2E)-3-(4-Methoxyphenyl)-2-[(E)-morpholine-4-carbonyl]prop-2-enenitrile (CAS 141736-04-1)
- 2,2-Bis(4-methoxyphenyl)acetic acid (CAS 4541-73-5)
- 3-(4-Methoxyphenyl)chromane-6,7-diol (CAS 76397-87-0)
- Ethyl 3-(5-(4-methoxyphenyl)furan-2-yl)acrylate (CAS 886496-97-5)
- 6-(4-Methoxyphenyl)-3-methylimidazo[2,1-b]thiazole-5-carbaldehyde (CAS 134670-46-5)
- methyl 3-[(2-methoxyphenyl)methanesulfonyl]propanoate (CAS 1461704-71-1)
Recommended Standards
- 2-([3,2':6',3''-Terpyridin]-4'-yl)acetonitrile (CAS 1227513-94-1)
- Ethyl 4-(naphthalen-2-yloxy)-3-oxobutanoate (CAS 1225829-63-9)
- 2-([3,2':5',3''-Terpyridin]-3'-yl)acetonitrile (CAS 1227591-47-0)
- 1-(8-hydroxyquinolin-2-yl)piperidine-4-carboxylic acid (CAS 1223467-88-6)
- 2-Chloro-N-((3-isopropoxypropyl)carbamoyl)acetamide (CAS 749901-85-7)
- (6-Chloro-[2,3'-bipyridin]-5-yl)methanol (CAS 1227584-64-6)
- N-(2,5-dibromophenyl)-2-(4-(4-fluorophenyl)piperazin-1-yl)acetamide (CAS 882083-62-7)
- 3-Amino-5-bromo-n-(2-(2-(2-methoxyethoxy)ethoxy)ethyl)benzamide (CAS 1628441-34-8)
- 1-(2-(Aminomethyl)phenyl)ethanone (CAS 771581-28-3)
- 1-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-4-phenylcyclohexane-1-carboxylic acid (CAS 851307-75-0)
- 4-Chlorobenzoic acid-α-<SUP>13</SUP>C (CAS 138534-66-4)
- 5-Hexyl-2-(4-isothiocyanatophenyl)pyridine (CAS 113744-13-1)
- 2-cyano-3-(4-cyanophenyl)propanoic acid (CAS 18176-71-1)
- Des-Phe22-Tirzepatide (CAS CATO-CPTD788951)
Why CATO?
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