644-59-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 644-59-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,4 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 644-59:
(5*6)+(4*4)+(3*4)+(2*5)+(1*9)=77
77 % 10 = 7
So 644-59-7 is a valid CAS Registry Number.
InChI:InChI=1/C6H9ClN4O4S2/c7-6-4(11-8)1-3(16(9,12)13)2-5(6)17(10,14)15/h1-2,11H,8H2,(H2,9,12,13)(H2,10,14,15)