89431-58-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89431-58-3 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 8 respectively.
Calculate Digit Verification of CAS Registry Number 89431-58:
(7*8)+(6*9)+(5*4)+(4*3)+(3*1)+(2*5)+(1*8)=163
163 % 10 = 3
So 89431-58-3 is a valid CAS Registry Number.
89431-58-3Relevant articles and documents
Substituted benzoxazin-2-ones and pharmaceutical compositions containing them
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, (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