156733-04-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156733-04-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,7,3 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 156733-04:
(8*1)+(7*5)+(6*6)+(5*7)+(4*3)+(3*3)+(2*0)+(1*4)=139
139 % 10 = 9
So 156733-04-9 is a valid CAS Registry Number.