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1616776-05-6

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1616776-05-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1616776-05-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,6,7,7 and 6 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1616776-05:
(9*1)+(8*6)+(7*1)+(6*6)+(5*7)+(4*7)+(3*6)+(2*0)+(1*5)=186
186 % 10 = 6
So 1616776-05-6 is a valid CAS Registry Number.

1616776-05-6Relevant articles and documents

Synthesis of arylated and aminated naphthalenes and their synthetic applications for aza-heterocycles

Singh, Surjeet,Shaw, Ranjay,Shally,Chaudhary, Sandeep,Kumar, Abhinav,Pratap, Ramendra

, p. 6436 - 6443 (2016)

We have developed a new, metal free methodology for the synthesis of 3,4-diamino-2-methylsulfanyl-naphthalene-1-carbonitrile by reaction of 2-(1-cyano-2,2-bis(methylthio)vinyl)benzonitrile and nitromethane under basic conditions followed by reduction of n

Synthesis of 1-amino-2-aroyl/acetylnaphthalenes through a base mediated one pot inter and intramolecular C-C bond formation strategy

Singh, Surjeet,Yadav, Pratik,Sahu, Satya Narayan,Althagafi, Ismail,Kumar, Abhinav,Kumar, Brijesh,Ram, Vishnu Ji,Pratap, Ramendra

, p. 4730 - 4737 (2014/06/24)

A new precursor 2-(1-cyano-2,2-bis(methylthio)vinyl)benzonitrile has been synthesized by the reaction of 2-cyanomethylbenzonitrile, carbon disulfide and methyl iodide under basic conditions. The reaction of 2-(1-cyano-2,2- bis(methylthio)vinyl)benzonitrile with various functionalized aryl/heteroaryl methyl ketones or acetone under basic conditions afforded 4-amino-3-aroyl/ heteroaroyl/acetyl-2-methylsulfanylnaphthalene-1-carbonitriles in good yields through a (5C + 1C) annulation strategy; this involves sequential intermolecular, followed by intramolecular, C-C bond formation reactions. The structure of the product was confirmed by single crystal X-ray crystallography. This journal is

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