54459-40-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54459-40-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,4,5 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 54459-40:
(7*5)+(6*4)+(5*4)+(4*5)+(3*9)+(2*4)+(1*0)=134
134 % 10 = 4
So 54459-40-4 is a valid CAS Registry Number.
54459-40-4Relevant articles and documents
(N-lithioamino)diorganophosphanes and bis(N- lithioamino)organophosphanes: Synthesis and structures
Eichhorn, Bettina,Noeth, Heinrich,Seifert, Thomas
, p. 2355 - 2368 (1999)
Butyllithium (nBuLi) deprotonates Ph2P-NHtBu in ether to give (Ph2P- NLitBu)2 · OEt2. There is no Li ··· P interaction in this molecule. Three compounds of the type R'P(NLiR)2 have been obtained by li