3-(2,4-Dihydroxybenzylidene)indolin-2-one CAS 328106-29-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 328106-29-2 |
| Molecular Formula | C15H11NO3 |
| Molecular Weight | 253.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(2,4-Dihydroxybenzylidene)indolin-2-one (CAS 328106-29-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C15H11NO3. Molecular weight: 253.25 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C15H11NO3 |
| Molecular Weight | 253.25 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Dihydroxybenzylidene Standards
- (5E)-5-(2,3-Dihydroxybenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one (CAS 590376-71-9)
- N'-(2,4-dihydroxybenzylidene)isonicotinohydrazide (CAS 3477-69-8)
- 2-(2,5-Dihydroxybenzylidene)-1H-indene-1,3(2H)-dione (CAS 1023509-67-2)
- (E)-5-(3,4-Dihydroxybenzylidene)thiazolidine-2,4-dione (CAS 99073-32-2)
- 2-(3,4-Dihydroxybenzylidene)-6-hydroxybenzofuran-3(2H)-one (CAS 100433-06-5)
- (Z)-2-(3,4-Dihydroxybenzylidene)-6,7-dihydroxybenzofuran-3(2H)-one (CAS 576-02-3)
- 2-(3,4-Dihydroxybenzylidene)-4,6-dihydroxybenzofuran-3(2H)-one (CAS 480-70-6)
- 5-(3,4-Dihydroxybenzylidene)imidazolidine-2,4-dione (CAS 52036-15-4)
Recommended Standards
- 3-(1-Oxoisoindolin-2-yl)benzoic acid (CAS 4770-70-1)
- 3-(2-Nitrophenyl)-1-phenylprop-2-en-1-one (CAS 7473-93-0)
- 2-Phenylbenzo[f][1,4]oxazepine-3,5(2H,4H)-dione (CAS 95594-17-5)
- 2-Chloromethyl-5-ethoxybenzo[d]thiazole, 97% (CAS 1188028-14-9)
- 2-Cyclopropyl-4,6-dimethylpyrimidine-5-carboxylic acid (CAS 548773-17-7)
- 1-((2-Hydroxyethyl)(methyl)amino)anthracene-9,10-dione (CAS 5960-58-7)
- α-Ketoglutaric acid sodium salt (CAS 22202-68-2)
- (1-(Thietan-3-ylamino)cyclopropyl)methanol (CAS 1849292-86-9)
- Dapagliflozin Impurity 28 (CAS 461432-28-0)
- Integrin Binding Peptide trifluoroacetate salt (CAS 278792-07-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com