155646-12-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155646-12-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,6,4 and 6 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 155646-12:
(8*1)+(7*5)+(6*5)+(5*6)+(4*4)+(3*6)+(2*1)+(1*2)=141
141 % 10 = 1
So 155646-12-1 is a valid CAS Registry Number.