638146-33-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 638146-33-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,8,1,4 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 638146-33:
(8*6)+(7*3)+(6*8)+(5*1)+(4*4)+(3*6)+(2*3)+(1*3)=165
165 % 10 = 5
So 638146-33-5 is a valid CAS Registry Number.