81381-56-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81381-56-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,3,8 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81381-56:
(7*8)+(6*1)+(5*3)+(4*8)+(3*1)+(2*5)+(1*6)=128
128 % 10 = 8
So 81381-56-8 is a valid CAS Registry Number.
InChI:InChI=1/C16H21N7O5/c1-9(15(27)20-7-13(24)19-8-14(25)26)21-16(28)12(17)6-10-2-4-11(5-3-10)22-23-18/h2-5,9,12H,6-8,17H2,1H3,(H,19,24)(H,20,27)(H,21,28)(H,25,26)/t9-,12-/m0/s1