N-{4-[(1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)methyl]phenyl}acetamide CAS 31060-55-6
| CAS No. | 31060-55-6 |
| Molecular Formula | C18H13NO3 |
| Molecular Weight | 291.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 291.30 g/mol gives N-{4-[(1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)methyl]phenyl}acetamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N-{4-[(1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)methyl]phenyl}acetamide (CAS 31060-55-6), molecular formula C18H13NO3 and molecular weight 291.30 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, N-{4-[(1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)methyl]phenyl}acetamide (C18H13NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 291.30 g/mol, it falls into the medium-molecular-weight range. 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 N-{4-[(1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)methyl]phenyl}acetamide 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 | C18H13NO3 |
| Molecular Weight | 291.30 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- N'-cyclohexylidene-2-(4-nitrophenoxy)acetohydrazide (CAS 92440-68-1)
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- 4-((3,4-Dimethylbenzyl)amino)butan-2-ol (CAS 1340221-43-3)
- 2-Formyl-4-(trifluoromethyl)biphenyl (CAS 1214329-24-4)
- 2-Nitrophenylarsonic Acid (CAS 5410-29-7)
- 1-(2,6-Dimethylphenyl)-3,3-dimethylbutan-1-one (CAS 898764-53-9)
- Metaraminol Impurity 66 (CAS CATO-C4X-225266)
- Spiro[chromane-2,3'-oxetan]-4-ol (CAS 1242267-65-7)
- Calcipotriol Impurity 37 (CAS CATO-C4X-122237)
- tert-butyl 3-amino-3-ethylazetidine-1-carboxylate (CAS 1158758-79-2)
- D-allo-Thr7-Semaglutide (CAS CATO-C4X-2226242)
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