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Structure of 5314-37-4
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1-Methylisatin is used as a reactant for stereoselective preparation of spirobicyclic and bis-spirotricyclic pyrazolidinones, for regioselective preparation of spirocyclic oxindole-butenolides, for synthesis of spiro-oxindoles, for preparation of unsymmetrical oxindoles, for stereoselective preparation of hydroxyloxindoles via Morita-Baylis-Hillman reaction, for preparation of pyridinecarboxylic acid [(oxo)indolylidene)hydrazide derivatives (Schiff base hydrazides) as antibacterial agents.
4-(4-Sulfophenyl)benzenesulfonic acid serves as a robust, water-soluble building block for constructing sulfonated aromatic systems. Its dual sulfonic acid groups enable strong ionic interactions and enhance solubility in polar media, facilitating purification and handling. The molecule functions effectively in coupling reactions, particularly in the synthesis of functional dyes, surfactants, and ion-exchange materials. Bench-stable and compatible with standard synthetic protocols, it offers reliable performance in scale-up applications.
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GHS Pictogram :
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GHS No : GHS05
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Signal Word : Danger
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UN#: 3261
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Class : 8
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Packing Group : Ⅲ
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Hazard Statements : H314-H318
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Precautionary Statements : P260-P264-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P363-P405-P501
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Lot numbers can be found on the outside label of a product: