1-Methyl-3,4-dihydro-1H-2-benzopyran-1-carbaldehyde CAS 83501-38-6
| CAS No. | 83501-38-6 |
| Molecular Formula | C11H12O2 |
| Molecular Weight | 176.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Methyl-3,4-dihydro-1H-2-benzopyran-1-carbaldehyde meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
1-Methyl-3,4-dihydro-1H-2-benzopyran-1-carbaldehyde (CAS 83501-38-6) is a high-purity analytical reference standard with the molecular formula C11H12O2 and a molecular weight of 176.21 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 1-Methyl-3,4-dihydro-1H-2-benzopyran-1-carbaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 176.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C11H12O2 |
| Molecular Weight | 176.21 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
Related Methyl Standards
- 3-(2,3-dihydro-1-benzofuran-5-yl)propanal (CAS 1057670-88-8)
- 8-ethyl-3,4-dihydro-2H-1-benzopyran-4-one (CAS 1094750-05-6)
- 3,4-Dihydro-8-methoxynaphthalen-1(2H)-one (CAS 13185-18-7)
- 4-Methyl-3,4-dihydro-2h-1-benzopyran-4-carbaldehyde (CAS 139711-08-3)
- 1-(3,4-Dihydro-2H-1-benzopyran-3-yl)ethan-1-one (CAS 1433830-68-2)
- 4-Methyl-3,4-dihydro-1H-2-benzopyran-4-carboxaldehyde (CAS 161297-43-4)
- 1-(2,3-Dihydro-1-benzofuran-5-yl)propan-1-one (CAS 68660-11-7)
- 1-(3,4-Dihydro-2h-1-benzopyran-6-yl)ethan-1-one (CAS 58621-52-6)
Recommended Standards
- 1-Methyl-2,3-dihydro-1h-indene-2-carboxylic acid, mixture of diastereomers (CAS 708-37-2)
- 1-Phenylallyl acetate (CAS 7217-71-2)
- 1-methyl-2,3-dihydro-1H-indene-1-carboxylic acid (CAS 33223-78-8)
- 1-Phenylcyclobutanecarboxylic Acid (CAS 37828-19-6)
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- 4-Hydroxyquinoline-8-acetic acid (CAS 1261631-50-8)
- Seladelpar (CAS 851528-79-5)
- 6152-33-6 2-Biphenylol, sodium salt, tetrahydrate (1,1'-Biphenyl)-2-ol, sodium salt, tetrahydrate Sodium o-phenylphenate tetrahydrate Sodium 2-biphenylate tetrahydrate (CAS 6152-33-6)
- (2R,3R,4r,5S)-4-(hydroxymethyl)cuban-1-ol (CAS 2168828-02-0)
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- Semaglutide impurity 49 (CAS CATO-C4X-222649)
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