1308740-55-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1308740-55-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,8,7,4 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1308740-55:
(9*1)+(8*3)+(7*0)+(6*8)+(5*7)+(4*4)+(3*0)+(2*5)+(1*5)=147
147 % 10 = 7
So 1308740-55-7 is a valid CAS Registry Number.