444120-34-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 444120-34-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,4,1,2 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 444120-34:
(8*4)+(7*4)+(6*4)+(5*1)+(4*2)+(3*0)+(2*3)+(1*4)=107
107 % 10 = 7
So 444120-34-7 is a valid CAS Registry Number.
444120-34-7Relevant articles and documents
Intramolecular hydrogen bonding of nucleobases
Crisp, Geoffrey T.,Jiang, Yu-Lin
, p. 3157 - 3160 (2007/10/03)
The intramolecular hydrogen bonding of a series of linked uracil, thymine and adenine derivatives is described. The nucleoside bases have been linked by semi-flexible spacers and the chemical shifts and ΔδNH/ΔT values for the nucleoside NH protons confirm