5,6-Dimethylisatin CAS 73816-46-3
| CAS No. | 73816-46-3 |
| Molecular Formula | C10H9NO2 |
| Molecular Weight | 175.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,6-Dimethylisatin (C10H9NO2) 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. 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).
5,6-Dimethylisatin (CAS 73816-46-3), molecular formula C10H9NO2 and molecular weight 175.18 g/mol, is a CATO reference standard with documented purity and traceability.
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 5,6-Dimethylisatin 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 | C10H9NO2 |
| Molecular Weight | 175.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 1 |
Related Dimethylisatin Standards
Recommended Standards
- 5,6,7,8-Tetrahydro-5-oxo-6-isoquinolinecarboxaldehyde (CAS 938437-77-5)
- 5,7-difluoro-2,3-dihydro-1H-indol-2-one (CAS 247564-59-6)
- 5,5-Dimethyl-2-nitromethyl-1,3-dioxane (CAS 33884-29-6)
- 5,5-difluoro-6,7-dihydro-1H-indol-4-one (CAS 2755402-17-4)
- 4-[(1r)-1-amino-2,2,2-trifluoroethyl]-3-fluorophenol hydrochloride (CAS 2470279-78-6)
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- 4-Bromo-2-(difluoromethyl)-5-methoxypyridine (CAS 1805315-01-8)
- meso-Tetra(o-dichlorophenyl) Porphine (CAS 32350-86-0)
- 2-Chloro-n'-(diphenylmethylidene)acetohydrazide (CAS 29043-58-1)
- 3-(4-(Methoxymethyl)phenyl)-2-oxopropanoic acid (CAS 1488921-28-3)
- 1,1,1-Trifluoro-2-(methylsulfanyl)ethane (CAS 5187-55-3)
- Peptide Fmoc-Thi-Thi-OH (CAS CATO-CPTD788552)
Why CATO?
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