1356409-23-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1356409-23-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,6,4,0 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1356409-23:
(9*1)+(8*3)+(7*5)+(6*6)+(5*4)+(4*0)+(3*9)+(2*2)+(1*3)=158
158 % 10 = 8
So 1356409-23-8 is a valid CAS Registry Number.