86733-57-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 86733-57-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,6,7,3 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 86733-57:
(7*8)+(6*6)+(5*7)+(4*3)+(3*3)+(2*5)+(1*7)=165
165 % 10 = 5
So 86733-57-5 is a valid CAS Registry Number.
86733-57-5Relevant articles and documents
A NEW AND GENERAL PROCEDURE FOR THE PREPARATION OF DEOXYNUCLEOSIDE PHOSPHORAMIDITES
Fourrey, Jean-Louis,Varenne, Jeanette
, p. 1963 - 1966 (1983)
Nucleoside phosphoramidites can be obtained in a one pot reaction by reacting successively an alkyloxy (or aryloxy)bis-triazolylphosphine with 3'-OH free deoxynucleoside and a trimethylsilylated secondary amine.