170421-67-7 Usage
Chemical Properties
Gray powder
Check Digit Verification of cas no
The CAS Registry Mumber 170421-67-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,4,2 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 170421-67:
(8*1)+(7*7)+(6*0)+(5*4)+(4*2)+(3*1)+(2*6)+(1*7)=107
107 % 10 = 7
So 170421-67-7 is a valid CAS Registry Number.