132639-57-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 132639-57-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,6,3 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 132639-57:
(8*1)+(7*3)+(6*2)+(5*6)+(4*3)+(3*9)+(2*5)+(1*7)=127
127 % 10 = 7
So 132639-57-7 is a valid CAS Registry Number.
132639-57-7Relevant articles and documents
A facile conversion of dialkyl phosphonates to dialkyl phosphorodithioates
Wada,Hata
, p. 7461 - 7462 (2007/10/02)
Dialkyl phosphonates were converted into the corresponding phosphorodithioates in three steps by one-pot procedure. The reaction was applied to the synthesis of nucleoside phosphorodithioate derivatives.