1039451-34-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1039451-34-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,9,4,5 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1039451-34:
(9*1)+(8*0)+(7*3)+(6*9)+(5*4)+(4*5)+(3*1)+(2*3)+(1*4)=137
137 % 10 = 7
So 1039451-34-7 is a valid CAS Registry Number.