1607787-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1607787-21-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,7,7,8 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1607787-21:
(9*1)+(8*6)+(7*0)+(6*7)+(5*7)+(4*8)+(3*7)+(2*2)+(1*1)=192
192 % 10 = 2
So 1607787-21-2 is a valid CAS Registry Number.