21928-82-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21928-82-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,2 and 8 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21928-82:
(7*2)+(6*1)+(5*9)+(4*2)+(3*8)+(2*8)+(1*2)=115
115 % 10 = 5
So 21928-82-5 is a valid CAS Registry Number.
InChI:InChI=1/C11H14N6O5/c1-16(15-21)9-6-10(13-3-12-9)17(4-14-6)11-8(20)7(19)5(2-18)22-11/h3-5,7-8,11,18-20H,2H2,1H3/t5-,7-,8-,11-/m1/s1