(Z)-4-chloro-3-(4-hydroxybenzylidene)indolin-2-one CAS 855423-46-0
| CAS No. | 855423-46-0 |
| Molecular Formula | C15H10ClNO2 |
| Molecular Weight | 271.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (Z)-4-chloro-3-(4-hydroxybenzylidene)indolin-2-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(Z)-4-chloro-3-(4-hydroxybenzylidene)indolin-2-one (CAS 855423-46-0), molecular formula C15H10ClNO2 and molecular weight 271.70 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (Z)-4-chloro-3-(4-hydroxybenzylidene)indolin-2-one (C15H10ClNO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 271.70 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C15H10ClNO2 |
| Molecular Weight | 271.70 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- Methyl 5-(chlorosulfonyl)thieno[2,3-b]thiophene-2-carboxylate (CAS 129949-97-9)
- 3-(Cyclohexyloxy)benzoic acid (CAS 158861-00-8)
- Methyl (R)-2-(2-methylpyrrolidin-2-yl)-1H-indole-4-carboxylate (CAS 1446261-53-5)
- 2-((4-Chlorobenzyl)thio)-5-nitrobenzaldehyde (CAS 319454-75-6)
- 3-(N-Boc-aminoethyl)piperidine 3-(2-boc-aminoethyl) piperidine (2-piperidin-3-yl-ethyl)-carbamic acid tert-butyl ester 3-(n-boc-aminoethyl)-piperidine 3-(2-boc-aminoethyl)piperidine carbamic acid, n-[2-(3-piperidinyl)ethyl]-, 1,1-dimethylethyl ester 3-(n-boc-2-aminoethyl)piperidine tert-butyl n-[2-(piperidin-3-yl)ethyl]carbamate 215305-98-9 (CAS 215305-98-9)
- 3,4-Dichlorofuran-2,5-dicarbaldehyde (CAS 157948-52-2)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
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