1428307-74-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1428307-74-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,8,3,0 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1428307-74:
(9*1)+(8*4)+(7*2)+(6*8)+(5*3)+(4*0)+(3*7)+(2*7)+(1*4)=157
157 % 10 = 7
So 1428307-74-7 is a valid CAS Registry Number.