1542135-82-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1542135-82-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,4,2,1,3 and 5 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1542135-82:
(9*1)+(8*5)+(7*4)+(6*2)+(5*1)+(4*3)+(3*5)+(2*8)+(1*2)=139
139 % 10 = 9
So 1542135-82-9 is a valid CAS Registry Number.