Cas 127743-85-5,2-amino-5-(4-chlorophenyl)azopyrimidin-4-ol

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Check Digit Verification of cas no

The CAS Registry Mumber 127743-85-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,7,4 and 3 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 127743-85:
(8*1)+(7*2)+(6*7)+(5*7)+(4*4)+(3*3)+(2*8)+(1*5)=145
145 % 10 = 5
So 127743-85-5 is a valid CAS Registry Number.

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127743-85-5Relevant academic research and scientific papers

The Synthesis and Chlorination of Some Pyrimidin-4-ols Having 5-Nitrogen Functionality

Harnden, Michael R.,Hurst, Derek T.

, p. 47 - 53 (2007/10/02)

Syntheses of a number of pyrimidin-4-ols having 5-nitrogen functionality are described.Phosphorus oxychloride/diethylaniline chlorination of 6-amino-2-methylthio-5-nitropyrimidin-4-ol gave the corresponding 6-chloro derivative.However, 2-amino-6-methylthi

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