101742-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101742-56-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,7,4 and 2 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 101742-56:
(8*1)+(7*0)+(6*1)+(5*7)+(4*4)+(3*2)+(2*5)+(1*6)=87
87 % 10 = 7
So 101742-56-7 is a valid CAS Registry Number.