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157834-20-3

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157834-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157834-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,3 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 157834-20:
(8*1)+(7*5)+(6*7)+(5*8)+(4*3)+(3*4)+(2*2)+(1*0)=153
153 % 10 = 3
So 157834-20-3 is a valid CAS Registry Number.

157834-20-3Relevant articles and documents

Synthesis and anticonvulsant activity of some new 3-(p-sulfamoylphenyl)-4(3H)-quinazolinones

El-Naser Ossman,El-Sayed Barakat

, p. 915 - 919 (2007/10/02)

In view of their expected anticonvulsant property, a series of 3-(p-sulfamoylphenyl)-4(3H)-quinazolinone derivatives (V) were synthesized by condensation of sulfanilamide with various 4H-3,1-benzoxazin-4-ones (III). Some 2-amido-N-(p-sulfamoylphenyl) benz

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