155683-51-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155683-51-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,6,8 and 3 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 155683-51:
(8*1)+(7*5)+(6*5)+(5*6)+(4*8)+(3*3)+(2*5)+(1*1)=155
155 % 10 = 5
So 155683-51-5 is a valid CAS Registry Number.