89431-52-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89431-52-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,4,3 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 89431-52:
(7*8)+(6*9)+(5*4)+(4*3)+(3*1)+(2*5)+(1*2)=157
157 % 10 = 7
So 89431-52-7 is a valid CAS Registry Number.
89431-52-7Relevant academic research and scientific papers
Substituted benzoxazin-2-ones and pharmaceutical compositions containing them
-
, (2008/06/13)
This invention is directed to novel benzoxazin-2-ones of the formula STR1 wherein A is a sulfur atom or an SO, SO2, R--N=S, or R--N=SO2 group where R is a hydrogen atom or an acyl group; D is an alkylene group; R1 is an al