1187842-54-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1187842-54-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,7,8,4 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1187842-54:
(9*1)+(8*1)+(7*8)+(6*7)+(5*8)+(4*4)+(3*2)+(2*5)+(1*4)=191
191 % 10 = 1
So 1187842-54-1 is a valid CAS Registry Number.