1-Oxo-1,2-dihydroisoquinolin-5-yl acetate CAS 656233-56-6
| CAS No. | 656233-56-6 |
| Molecular Formula | C11H9NO3 |
| Molecular Weight | 203.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 1-Oxo-1,2-dihydroisoquinolin-5-yl acetate (C11H9NO3) 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies 1-Oxo-1,2-dihydroisoquinolin-5-yl acetate (CAS 656233-56-6), a certified reference material (molecular formula C11H9NO3, MW 203.19 g/mol) for analytical method development and quality control.
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 1-Oxo-1,2-dihydroisoquinolin-5-yl acetate 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 | C11H9NO3 |
| Molecular Weight | 203.19 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.) | 1985 |
| Nitrogen Atoms | 1 |
Related Oxo Standards
- 2-(1-Oxo-1,2-dihydroisoquinolin-3-yl)acetic acid (CAS 69391-35-1)
- 4-(3,4-Dihydroisoquinolin-2(1H)-yl)butan-1-amine (CAS 174643-96-0)
- 1-(3,4-dihydroisoquinolin-2(1H)-yl)-2-methylpropan-2-amine (CAS 741705-80-6)
- 2-(3,4-Dihydroisoquinolin-2(1H)-yl)-2-oxoacetic acid (CAS 603097-44-5)
- 2-(3,4-Dihydroisoquinolin-2(1h)-yl)propanoic acid (CAS 938350-35-7)
- 3-(3,4-Dihydroisoquinolin-2(1H)-yl)propanoic acid (CAS 51375-99-6)
- 3-(3,4-Dihydroisoquinolin-2(1H)-yl)-3-oxopropanenitrile (CAS 17613-25-1)
- 3-(3,4-Dihydroisoquinolin-2(1H)-yl)propan-1-ol (CAS 86368-07-2)
Recommended Standards
- 1-Methyl-4-oxo-1,4-dihydroquinoline-2-carboxylic acid (CAS 35975-54-3)
- 1-Oxo-1,2-dihydro-isoquinoline-4-carboxylic acid methyl ester (CAS 37497-84-0)
- 1-Methyl-2-oxo-1,2-dihydroquinoline-6-carboxylic acid (CAS 23845-05-8)
- 2-(1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl)propanal (CAS 23101-87-3)
- 4-Methyl-2-(thiophen-2-yl)aniline (CAS 926237-35-6)
- 2-Cyclohexylethyl-beta-D-maltoside (CAS 260804-65-7)
- 4-[1-(4-Hydroxy-3,5-dimethylphenyl)-1,3-dimethylbutyl]-2,6-dimethylphenol (CAS 246862-75-9)
- 4-(2-Hydroxy-3-((2-methoxyphenyl)sulfonyl)propoxy)benzonitrile (CAS 478079-82-2)
- 1-(2,5-Dibromo-3,6-difluorophenyl)ethanone (CAS 1803713-56-5)
- 1-(3-(4-(1-Ethyl-3-(4-nitrophenyl)-1H-pyrazol-4-yl)-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridin-2-yl)phenyl)-N,N-dimethylmethanamine (CAS 942920-68-5)
- Gadoteridol impurity 39 (CAS 2172857-50-8（free base）)
- Methiocarb Sulfoxide (CAS 2635-10-1)
- 3-Ethyl-5-((5-methylfuran-2-yl)methylene)imidazolidine-2,4-dione (CAS 640718-26-9)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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