161716-21-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161716-21-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,7,1 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 161716-21:
(8*1)+(7*6)+(6*1)+(5*7)+(4*1)+(3*6)+(2*2)+(1*1)=118
118 % 10 = 8
So 161716-21-8 is a valid CAS Registry Number.
161716-21-8Relevant articles and documents
Phtalazin derivatives and their use as pesticides
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, (2008/06/13)
The invention provides compounds of formula: wherein the symbols are as defined in the description, which possess utility as pesticides (e.g. herbicides and insecticides).