1053657-04-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1053657-04-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,5,3,6,5 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1053657-04:
(9*1)+(8*0)+(7*5)+(6*3)+(5*6)+(4*5)+(3*7)+(2*0)+(1*4)=137
137 % 10 = 7
So 1053657-04-7 is a valid CAS Registry Number.