128981-15-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128981-15-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,8 and 1 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 128981-15:
(8*1)+(7*2)+(6*8)+(5*9)+(4*8)+(3*1)+(2*1)+(1*5)=157
157 % 10 = 7
So 128981-15-7 is a valid CAS Registry Number.
128981-15-7Relevant academic research and scientific papers
Oxidative and nonoxidative formation of internucleotide linkages
Brill,Yau,Caruthers
, p. 6621 - 6624 (2007/10/02)
Activation of nucleoside 3'-hydrogenphosphonodithioates with iodine in the presence of nucleosides and amines yields dinucleoside phosphorodithioates and nucleoside phosphorodithioamidates, respectively. Similar activation of nucleoside 3'-methylphosphono