42787-35-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42787-35-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,7,8 and 7 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 42787-35:
(7*4)+(6*2)+(5*7)+(4*8)+(3*7)+(2*3)+(1*5)=139
139 % 10 = 9
So 42787-35-9 is a valid CAS Registry Number.