158897-41-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158897-41-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,8,9 and 7 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 158897-41:
(8*1)+(7*5)+(6*8)+(5*8)+(4*9)+(3*7)+(2*4)+(1*1)=197
197 % 10 = 7
So 158897-41-7 is a valid CAS Registry Number.