4-ethynyl-2,3-dihydro-1H-isoindole-1,3-dione CAS 1909309-81-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1909309-81-4 |
| Molecular Formula | C10H5NO2 |
| Molecular Weight | 171.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-ethynyl-2,3-dihydro-1H-isoindole-1,3-dione (CAS 1909309-81-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H5NO2. Molecular weight: 171.15 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H5NO2 |
| Molecular Weight | 171.15 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 5-Chloro-4-methyl-3-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine (CAS 2377611-67-9)
- 3-(2-Methoxybenzylidene)pyrrolidin-2-one (CAS 1859-44-5)
- Des-Pro36-37-Tirzepatide (CAS CATO-CPTD788938)
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