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159598-02-4

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159598-02-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 159598-02-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,5,9 and 8 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 159598-02:
(8*1)+(7*5)+(6*9)+(5*5)+(4*9)+(3*8)+(2*0)+(1*2)=184
184 % 10 = 4
So 159598-02-4 is a valid CAS Registry Number.

159598-02-4Relevant articles and documents

Dicyanoketene Acetals, a Novel Type of ?-Acid Catalyst for Monothioacetalization of Acetals

Miura, Tsuyoshi,Masaki, Yukio

, p. 7961 - 7964 (1994)

Dicyanoketene acetals such as dicyanoketene dimethyl acetal and ethylene acetal are introduced to be a novel type of ?-acid catalyst for the monothioacetalization of acetals.Particularly, the catalytic activity of dicyanoketene ethylene acetal was found to be superior to that of tetracyanoethylene and chemoselective in the crossover reaction of the monothioacetalization of a ketone-, an aldehyde-acetal and an alcohol THP-ether providing a ketone monothioacetal favorably.

Unprecedented polymer-supported π-acid: Synthesis and its application as a promoter to the monothioacetalization of acetals

Masaki, Yukio,Tanaka, Nobuyuki,Miura, Tsuyoshi

, p. 5799 - 5802 (2007/10/03)

A novel polymer was synthesized by copolymerization of styrene monomer bearing dicyanoketene acetal functionality and ethylene glycol dimethacrylate, and used successfully as a recyclable π-acid catalyst in monothioacetalization of aromatic, aliphatic, acyclic, and cyclic acetals with thiophenol and phenylthiotrimethylsilane.

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