156737-70-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156737-70-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,7,3 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 156737-70:
(8*1)+(7*5)+(6*6)+(5*7)+(4*3)+(3*7)+(2*7)+(1*0)=161
161 % 10 = 1
So 156737-70-1 is a valid CAS Registry Number.