157024-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157024-22-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,0,2 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 157024-22:
(8*1)+(7*5)+(6*7)+(5*0)+(4*2)+(3*4)+(2*2)+(1*2)=111
111 % 10 = 1
So 157024-22-1 is a valid CAS Registry Number.
157024-22-1Relevant articles and documents
Guanosine Derivatives Bearing an N2-3-Imidazolepropionic Acid
Heeb, Norbert V.,Benner, Steven A.
, p. 3045 - 3048 (2007/10/02)
Synthesis of a 2'-deoxyguanosine analog tethered through the exocyclic nitrogen via a 3 carbon chain to the 4-position of an imidazole is described.The imidazole forms a hydrogen bond with the 2'-hydroxyl group of a complementary cytosine bound as a Watson-Crick base pair.