3-methylene-1-phenyldihydro-1H-pyrrole-2,5-dione CAS 34105-39-0
| CAS No. | 34105-39-0 |
| Molecular Formula | C11H9NO2 |
| Molecular Weight | 187.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-methylene-1-phenyldihydro-1H-pyrrole-2,5-dione 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.
3-methylene-1-phenyldihydro-1H-pyrrole-2,5-dione (CAS 34105-39-0), molecular formula C11H9NO2 and molecular weight 187.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H9NO2, 3-methylene-1-phenyldihydro-1H-pyrrole-2,5-dione contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 187.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C11H9NO2 |
| Molecular Weight | 187.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 1-(2-Chloro-5-nitrophenyl)-3-(ethoxycarbonyl)-5-methyl-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264046-78-7)
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- 4-(4-Chlorophenoxy)-3,5-difluoroaniline (CAS 549547-33-3)
- 3-((4-Chlorophenyl)sulfonyl)-7-hydroxy-2H-chromen-2-one (CAS 861520-20-9)
- 2-[(Cyclohexylmethyl)(methyl)amino]isonicotinic acid (CAS 1307470-70-7)
- Velnacrine-1,2,2-d (CAS 1219806-48-0)
- N-[(E)-(Dimethylamino)methylidene]-4-(4-fluorobenzoyl)-1H-pyrrole-2-carboxamide (CAS 478259-83-5)
- 2-(4-Bromophenyl)-1H-indole-6-carboxylic acid (CAS 1956325-00-0)
- (1R,2R,3S)-2-amino-3-hydroxycyclobutane-1-carboxylic acid (CAS 2165190-24-7)
- Ginseng Tetrapeptide (CAS 178553-95-2)
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