Benzo[g]isatin CAS 5353-96-8
| CAS No. | 5353-96-8 |
| Molecular Formula | C12H7NO2 |
| Molecular Weight | 197.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Benzo[g]isatin is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Benzo[g]isatin (CAS 5353-96-8) is a high-purity analytical reference standard with the molecular formula C12H7NO2 and a molecular weight of 197.19 g/mol.
Benzo[g]isatin (C12H7NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H7NO2 |
| Molecular Weight | 197.19 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 3,6-Dichloro-2-iodobenzaldehyde (CAS 861081-48-3)
- 1-(5-Bromopyridin-2-yl)piperidine-4-carboxylic acid (CAS 954570-88-8)
- N-allyl-6-(((4-chlorophenyl)thio)methyl)-2-((4-fluorobenzyl)thio)pyrimidin-4-amine (CAS 341965-48-8)
- 4-(1-(2-Fluoro-[1,1'-biphenyl]-4-yl)ethyl)-N-methylthiazol-2-amine (CAS 113759-19-6)
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