4-(4-Methylphenyl)-2-azetidinone CAS 21161-19-3
| CAS No. | 21161-19-3 |
| Molecular Formula | C10H11NO |
| Molecular Weight | 161.20 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 4-(4-Methylphenyl)-2-azetidinone.
CATO supplies 4-(4-Methylphenyl)-2-azetidinone (CAS 21161-19-3), a certified reference material (molecular formula C10H11NO, MW 161.20 g/mol) for analytical method development and quality control.
Structurally, 4-(4-Methylphenyl)-2-azetidinone (C10H11NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 161.20 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 4-(4-Methylphenyl)-2-azetidinone 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 | C10H11NO |
| Molecular Weight | 161.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
Related Methylphenyl Standards
- 3-(2-Methylphenyl)prop-2-enamide (CAS 146669-23-0)
- n-(2-Methylphenyl)prop-2-enamide (CAS 17090-19-6)
- 2-Ethyl-6-methylphenyl isocyanate (CAS 75746-71-3)
- 4-(2-Methylphenyl)-2-azetidinone (CAS 83725-15-9)
- [(3-Methylphenyl)methyl](prop-2-en-1-yl)amine (CAS 1019537-23-5)
- 1-(4-Methylphenyl)cyclobutanamine (CAS 1094559-48-4)
- 1-(2-Methylphenyl)cyclobutanamine (CAS 1152587-00-2)
- 2-Methyl-2-(2-methylphenyl)cyclopropan-1-amine (CAS 1248491-72-6)
Recommended Standards
- 4-(4,5-Dihydro-1H-imidazol-2-yl)aniline (CAS 61033-71-4)
- 4-(Azetidin-1-yl)benzaldehyde (CAS 353247-81-1)
- 4-(3-Hydroxypropyl)benzonitrile (CAS 83101-12-6)
- 4-(Azidomethyl)-1,2-dimethylbenzeneDISCONTINUED (CAS 7517-51-3)
- n-(2,2-Difluoroethyl)-4-methylaniline (CAS 1178471-37-8)
- Fenclozic Acid (CAS 17969-20-9)
- 2-{4-oxo-4H,5H-furo[3,2-c]pyridin-5-yl}acetic acid (CAS 1936329-25-7)
- Ethyl 2-[(pyridin-4-ylmethyl)sulfanyl]acetate (CAS 82118-29-4)
- (4-(Trifluoromethyl)pyridin-3-yl)boronic acid hydrate (CAS 1072952-32-9)
- Methyl 5-bromo-4,4,5,5-tetrafluoropentanoate (CAS 1309602-78-5)
- 2,3-Dibromo-5-(difluoromethyl)-4-methoxypyridine (CAS 1805958-89-7)
- 2-(4-Ethyl-2-oxooxazolidin-3-yl)acetamide (CAS 172514-87-3)
- 898794-26-8 1-(2-Chlorophenyl)-3-(2,4-dimethylphenyl)propan-1-one DTXSID30644693 (CAS 898794-26-8)
- (Ser(PO3H2)202,Thr(PO3H2)205)-Tau Peptide (194-213) trifluoroacetate salt (CAS 2022956-55-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com