1580541-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1580541-72-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,8,0,5,4 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1580541-72:
(9*1)+(8*5)+(7*8)+(6*0)+(5*5)+(4*4)+(3*1)+(2*7)+(1*2)=165
165 % 10 = 5
So 1580541-72-5 is a valid CAS Registry Number.