380642-05-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 380642-05-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,0,6,4 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 380642-05:
(8*3)+(7*8)+(6*0)+(5*6)+(4*4)+(3*2)+(2*0)+(1*5)=137
137 % 10 = 7
So 380642-05-7 is a valid CAS Registry Number.