158966-67-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158966-67-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,9,6 and 6 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 158966-67:
(8*1)+(7*5)+(6*8)+(5*9)+(4*6)+(3*6)+(2*6)+(1*7)=197
197 % 10 = 7
So 158966-67-7 is a valid CAS Registry Number.