16649-79-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16649-79-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,4 and 9 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16649-79:
(7*1)+(6*6)+(5*6)+(4*4)+(3*9)+(2*7)+(1*9)=139
139 % 10 = 9
So 16649-79-9 is a valid CAS Registry Number.
InChI:InChI=1/C5H8N2O5.Ca/c6-5(12)7-2(4(10)11)1-3(8)9;/h2H,1H2,(H,8,9)(H,10,11)(H3,6,7,12);/q;+2/p-2/t2-;/m0./s1