7-Isocyanato-4-methyl-2H-chromen-2-one CAS 139374-47-3
| CAS No. | 139374-47-3 |
| Molecular Formula | C11H7NO3 |
| Molecular Weight | 201.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7-Isocyanato-4-methyl-2H-chromen-2-one (CAS 139374-47-3), a certified reference material (molecular formula C11H7NO3, MW 201.18 g/mol) for analytical method development and quality control.
The molecular framework of 7-Isocyanato-4-methyl-2H-chromen-2-one (C11H7NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures 7-Isocyanato-4-methyl-2H-chromen-2-one 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 | C11H7NO3 |
| Molecular Weight | 201.18 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 methanol, ethanol, DMSO |
| 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.) | 1996 |
| Nitrogen Atoms | 1 |
Related Isocyanato Standards
- 3-Isocyanato-2-methyl-6-(trifluoromethyl)pyridine (CAS 874832-10-7)
- 4-Isocyanato-3-methyl-5-phenylisoxazole (CAS 352018-89-4)
- 1-(4-Isocyanato-phenyl)-piperidine (CAS 879896-41-0)
- 1-isocyanato-3-(trifluoromethoxy)benzene (CAS 55225-86-0)
- 1-Isocyanato-2-methoxynaphthalene (CAS 117202-73-0)
- 3-Isocyanato-2-methyl-5-phenyl-furan (CAS 568577-82-2)
- 3-Isocyanato-5-methyl-2-phenylfuran (CAS 898289-18-4)
- 4-Isocyanato-5-methyl-1-phenyl-1h-pyrazole (CAS 799283-97-9)
Recommended Standards
- methyl 3-cyano-1H-indazole-6-carboxylate (CAS 1374258-28-2)
- 6-(Pyrimidin-5-yl)nicotinic acid (CAS 1400637-03-7)
- 3-Cyano-1-methyl-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid (CAS 1370587-26-0)
- 4-Nitro-2,2'-bipyridine (CAS 14162-93-7)
- Trt-Gly-OMe (CAS 10065-71-1)
- (2-(P-tolyl)acetyl)valine (CAS 1397007-60-1)
- 1-Bromo-5-methoxypentane (CAS 14155-86-3)
- n-(3-Chloro-4-fluorobenzyl)-3-(methylthio)propan-1-amine (CAS 1250832-99-5)
- 2-Chloro-N-(4-fluoro-3-methylphenyl)benzamide (CAS 454470-44-1)
- 2-(2-Ethoxyethyl)-1H-benzo[d]imidazole (CAS 51036-80-7)
- N-Methyl-N-(4-methylacridin-9-yl)acetamide (CAS 61981-69-9)
- delta-HCH (CAS CATO-LCPD103031-HE)
- tert-butyl 2-acetyl-1,3-thiazole-5-carboxylate (CAS 1909305-97-0)
- Semaglutide Impurity 246 (CAS CATO-C4X-2226246)
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