3742-88-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3742-88-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,4 and 2 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 3742-88:
(6*3)+(5*7)+(4*4)+(3*2)+(2*8)+(1*8)=99
99 % 10 = 9
So 3742-88-9 is a valid CAS Registry Number.