157561-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157561-99-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,5,6 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 157561-99:
(8*1)+(7*5)+(6*7)+(5*5)+(4*6)+(3*1)+(2*9)+(1*9)=164
164 % 10 = 4
So 157561-99-4 is a valid CAS Registry Number.
InChI:InChI=1/C11H6N4/c12-5-8(6-13)4-9-7-15-11-10(9)2-1-3-14-11/h1-4,7H,(H,14,15)
157561-99-4Relevant articles and documents
Vinylene-azaindole derivatives
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, (2008/06/13)
The present invention relates to the compounds of formula (I) STR1 wherein one of the groups X1 to X4 is N and the others are CH; the rest of the variables are as defined in the specification.