87693-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87693-77-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,9 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 87693-77:
(7*8)+(6*7)+(5*6)+(4*9)+(3*3)+(2*7)+(1*7)=194
194 % 10 = 4
So 87693-77-4 is a valid CAS Registry Number.
87693-77-4Relevant articles and documents
4-Acyl-2,6-dioxo-1-phenethyl piperozines
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, (2008/06/13)
2-Acyl-1,3,4,6,7,11b-hexahydro-2H-pyrazino-[2,1-a]-4-isoquinoleinones having anthelmintic activity of the formula STR1 are prepared from 4-acyl-2,6-dioxopierazines by reaction with a phenethyl halide, selective reduction of one of the oxo groups and cyclization, by the novel intermediates of formula STR2 in which Y represents O or H, OH.
