108791-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108791-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,7,9 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 108791-20:
(8*1)+(7*0)+(6*8)+(5*7)+(4*9)+(3*1)+(2*2)+(1*0)=134
134 % 10 = 4
So 108791-20-4 is a valid CAS Registry Number.
108791-20-4Relevant articles and documents
METHOXIDE-INDUCED REARRANGEMENT OF SOME N-t-BUTYL α-CHLOROPHOSPHONAMIDATES. EVIDENCE FOR AZAPHOSPHIRIDINE OXIDE INTERMEDIATES.
Harger, Martin J. P.,Williams, Andrew
, p. 2313 - 2314 (1986)
N-t-Butyl α-chlorophosphonamidates (4) undergo methoxide-induced rearrangement to give products (6 and 7) in which either the P-N or P-C bond has been broken.This implies the intermediacy of a cyclic azaphosphiridine oxide 5.
