40682-97-1 4H-1-Benzopyran-3-carboxaldehyde, 7-methyl-4-oxo- CTK1D4361 CAS 40682-97-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 40682-97-1 |
| Molecular Formula | C11H8O3 |
| Molecular Weight | 188.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
40682-97-1 4H-1-Benzopyran-3-carboxaldehyde, 7-methyl-4-oxo- CTK1D4361 (CAS 40682-97-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C11H8O3. Molecular weight: 188.18 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C11H8O3 |
| Molecular Weight | 188.18 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
Related H Standards
- 2H-1-Benzopyran-2-one, 5-methoxy-4-methyl- (CAS 30924-62-0)
- 1983-81-9 2H-1-Benzopyran-2-one,7-dihydroxy- 4,7-Dihydroxycoumarin Coumarin,7-dihydroxy- NSC-136214 NSC136214 (CAS 1983-81-9)
- 2H-1-Benzopyran-2-one, 3,8-trihydroxy (CAS 147942-92-5)
- 57543-38-1 2H-1-Benzopyran-3-carboxaldehyde, 8-methoxy- 5-18-01-00436 (Beilstein Handbook Reference) BRN 1640514 8-Methoxy-2H-1-benzopyran-3-carboxaldehyde (CAS 57543-38-1)
- 2H-1-Benzopyran-2-carbonylchloride, 3,4-dihydro- 77039-78-2 CTK2H5681 (CAS 77039-78-2)
- 2H-1-Benzopyran-2-one-2,4-13C2, 7-hydroxy-4-methyl- (CAS 438187-75-8)
- 50683-74-4 1H-2-Benzopyran-1-methanamine, 3,4-dihydro-N-methyl- 5-18-09-00644 (Beilstein Handbook Reference) BRN 1370732 3,4-Dihydro-N-methyl-1H-2-benzopyran-1-methanamine (CAS 50683-74-4)
- 1H-2-Benzopyran-1-one, 3-acetyl-7-fluoro- (CAS 1448704-71-9)
Recommended Standards
- O-(4-Nitrobenzoyl)hydroxylamine 35657-36-4 MFCD11976095 SY029700 (CAS 35657-36-4)
- 4282-33-1 A826014 dimethyl furan-3,4-dicarboxylate furan-3,4-dicarboxylic acid dimethyl ester (CAS 4282-33-1)
- 3304-70-9 1H-Imidazole-4,5-dicarboxylic acid, 4,5-dimethyl ester 1H-Imidazole-4,5-dicarboxylic acid, dimethyl ester Dimethyl imidazole-4,5-dicarboxylate Imidazole-4,5-dicarboxylic acid, dimethyl ester NSC 44628 NSC 44693 (CAS 3304-70-9)
- Methyl 3-oxo-2-(thiophene-2-carbonyl)butanoate (CAS 676348-57-5)
- 2-(2-Benzoylhydrazinyl)-N-phenyl-2-thioxoacetamide (CAS 1134334-98-7)
- 6-hydroxy-2-azabicyclo[2.2.2]octane hydrochloride (CAS 128573-76-2)
- 4-(4-Chlorophenyl)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 400075-09-4)
- Methyl 5-(2h-1,3-benzodioxol-5-yl)-1h-pyrazole-3-carboxylate (CAS 1029104-54-8)
- 3-Cyclopropoxy-2-formylbenzamide (CAS 1243382-91-3)
- Peptide 434 (CAS CATO-CPTD788434)
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 13829788188 / jacky.chen@cato-chem.com