1-(5-(Tert-butyl)isoxazol-3-yl)-3-(4-chlorophenyl)urea CAS 55807-85-7
| CAS No. | 55807-85-7 |
| Molecular Formula | C14H16ClN3O2 |
| Molecular Weight | 293.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1-(5-(Tert-butyl)isoxazol-3-yl)-3-(4-chlorophenyl)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.
1-(5-(Tert-butyl)isoxazol-3-yl)-3-(4-chlorophenyl)urea (CAS 55807-85-7), molecular formula C14H16ClN3O2 and molecular weight 293.75 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(5-(Tert-butyl)isoxazol-3-yl)-3-(4-chlorophenyl)urea (C14H16ClN3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 293.75 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C14H16ClN3O2 |
| Molecular Weight | 293.75 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- 1-(5-(Tert-butyl)isoxazol-3-yl)-3-(3-chlorophenyl)urea (CAS 852670-31-6)
- 2-((5-Chloroquinolin-8-yl)oxy)butan-2-yl acetate (CAS 88350-03-2)
- 1-(5-(tert-Butyl)isoxazol-3-yl)-3-(2-chlorophenyl)urea (CAS 899018-09-8)
- 2-[3-(4-chlorophenyl)-1-phenyl-1h-pyrazol-4-yl]acetonitrile (CAS 55432-07-0)
- N-(4-ethylpyridin-2-yl)-4-methyl-1,2,3-thiadiazole-5-carboxamide (CAS 693219-71-5)
- 2-Chloro-N-(2-cyano-3-methylbutan-2-yl)acetamide (CAS 730950-03-5)
- 1-(3,5-Dichlorophenyl)cyclobutanamine (CAS 1260664-04-7)
- Benzyl 4-(2-ethoxy-2-oxoethyl)-3-methylpiperidine-1-carboxylate (CAS 1242427-29-7)
- 4-Chloro-6-(difluoromethyl)-5-iodopicolinonitrile (CAS 1805400-68-3)
- methyl 5-methoxy-5-(3-methoxyphenyl)pentanoate (CAS 1803593-25-0)
- 3,4 inverted exclamation mark -Dihydroxypropiophenone 53170-93-7 MFCD24688528 SY027114 (CAS 53170-93-7)
- 1-(4-Methoxyphenyl)-3-methylcyclopentan-1-ol (CAS 1344306-36-0)
- Avanafil Impurity 120 (CAS CATO-C4X-1118120)
- Tau Peptide (74-102) (Exon 3/Insert 2 Domain) trifluoroacetate salt (CAS 1322695-34-0)
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