131853-37-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131853-37-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,8,5 and 3 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 131853-37:
(8*1)+(7*3)+(6*1)+(5*8)+(4*5)+(3*3)+(2*3)+(1*7)=117
117 % 10 = 7
So 131853-37-7 is a valid CAS Registry Number.
131853-37-7Relevant articles and documents
Nucleoside 3'-N,N-dialkylphosphonamidates: Novel building blocks for oligonucleotide synthesis
Wada,Ishikawa,Hata
, p. 6363 - 6366 (2007/10/02)
Nucleoside 3'-N,N-diisopropylphosphonamidates reacted with tris(2,4,6-tribromophenoxy)dichlorophosphorane (BDCP) to generate the corresponding aminophosphorochloridites without cleavage of the P-N bond. The reaction was applied to internucleotidic bond formation.
