101816-51-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101816-51-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,8,1 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 101816-51:
(8*1)+(7*0)+(6*1)+(5*8)+(4*1)+(3*6)+(2*5)+(1*1)=87
87 % 10 = 7
So 101816-51-7 is a valid CAS Registry Number.