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15898-43-8

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15898-43-8 Usage

Chemical Properties

White Solid

Uses

The Sodium salt of 4-Acetamidobenzenesulfinic Acid, 4-AcetaMidobenzenesulfinic acid sodiuM salt can be used in the preparation of Cyanine dyes.

Check Digit Verification of cas no

The CAS Registry Mumber 15898-43-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,8,9 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 15898-43:
(7*1)+(6*5)+(5*8)+(4*9)+(3*8)+(2*4)+(1*3)=148
148 % 10 = 8
So 15898-43-8 is a valid CAS Registry Number.

15898-43-8Relevant articles and documents

Aromatic sulfinic acid compound and preparation method thereof

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Paragraph 0155; 0158-0160, (2022/03/31)

The invention relates to a preparation method of an aromatic sulfinic acid compound, which comprises the following steps: dissolving an aromatic compound in a liquid coordination complex, and introducing sulfur dioxide to carry out Friedel-Crafts acylation reaction under the protection of inert gas to prepare the aromatic sulfinic acid compound. According to the preparation method, the liquid coordination complex prepared from the metal and the organic ligand is used as the catalyst and the solvent, other organic solvents do not need to be additionally added, the reaction rate is high, the yield is high, the product purity is high and can reach 97% on the whole, aftertreatment is simple, and the preparation method is suitable for large-scale production.

Enhancing the Potential of Miniature-Scale DNA-Compatible Radical Reactions via an Electron Donor-Acceptor Complex and a Reversible Adsorption to Solid Support Strategy

Lin, Bizhen,Lu, Weiwei,Chen, Zhen-Yu,Zhang, Yue,Duan, Yin-Zhe,Lu, Xiaojie,Yan, Ming,Zhang, Xue-Jing

supporting information, p. 7381 - 7385 (2021/10/12)

DNA-encoded library (DEL) technology is a powerful tool in the discovery of bioactive probe molecules and drug leads. Mostly, the success in DEL technology stems from the molecular diversity of the chemical libraries. However, the construction of DELs has been restricted by the idiosyncratic needs and the required low concentration (~1 mM or less) of the library intermediate. Here, we report visible-light-promoted on-DNA radical coupling reactions via an electron donor-acceptor (EDA) complex and a reversible adsorption to solid support (RASS) strategy. This protocol provides a unique solution to the challenges of increasing the reactivity of highly diluted DNA substrates and reducing the residues of heavy metals from photocatalysts. A series of on-DNA indole sulfone and selenide derivatives were obtained with good to quantitative conversions. It is anticipated that these mild-condition on-DNA radical reactions will significantly improve the chemical diversity of DELs and find widespread utility to DEL construction.

Metal-Free Chemoselective Reaction of Sulfoxonium Ylides and Thiosulfonates: Diverse Synthesis of 1,4-Diketones, Aryl Sulfursulfoxonium Ylides, and β-Keto Thiosulfones Derivatives

Wang, Fei,Liu, Bo-Xi,Rao, Weidong,Wang, Shun-Yi

supporting information, p. 6600 - 6604 (2020/09/02)

A diverse chemoselective insertion reaction of sulfoxonium ylides and thiosulfonates under transition-metal-free conditions is developed, which successfully affords 1,4-diketone compounds, arylthiosulfoxide-ylides, and β-keto thiosulfones, respectively. The nucleophilic addition of two molecular sulfoxonium ylides to construct sulfone-substituted 1,4-dione compounds is the highlight of this work.

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