187834-93-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 187834-93-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,8,3 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 187834-93:
(8*1)+(7*8)+(6*7)+(5*8)+(4*3)+(3*4)+(2*9)+(1*3)=191
191 % 10 = 1
So 187834-93-1 is a valid CAS Registry Number.