117779-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117779-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,7 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 117779-57:
(8*1)+(7*1)+(6*7)+(5*7)+(4*7)+(3*9)+(2*5)+(1*7)=164
164 % 10 = 4
So 117779-57-4 is a valid CAS Registry Number.
117779-57-4Relevant academic research and scientific papers
A NEW AND VERSATILE PHOSPHONYLATION APPROACH
Klein, P.A.M. van der,Dreef, C.E.,Marel, G.A. van der,Boom, J.H. van
, p. 5473 - 5476 (2007/10/02)
The bifunctional reagent bis(benzotriazolyl)-2-bromoethylphosphonate has been used successfully for the preparation of 2-amino-, 2-N-methylamino- and 2-N-dimethylaminoethylphosphonates of methyl 2,3,4-tri-O-benzoyl-β-D-galactopyranoside.
