156738-27-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156738-27-1 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 8 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 156738-27:
(8*1)+(7*5)+(6*6)+(5*7)+(4*3)+(3*8)+(2*2)+(1*7)=161
161 % 10 = 1
So 156738-27-1 is a valid CAS Registry Number.