109739-44-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109739-44-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,7,3 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 109739-44:
(8*1)+(7*0)+(6*9)+(5*7)+(4*3)+(3*9)+(2*4)+(1*4)=148
148 % 10 = 8
So 109739-44-8 is a valid CAS Registry Number.
109739-44-8Relevant articles and documents
Convenient one pot synthesis of phosphonites and H-phosphinates
Petnehazy, Imre,Jaszay, Zsuzsa M.,Szabo, Andrea,Everaert, Kinga
, p. 1665 - 1674 (2003)
A convenient and simple one-pot method is described for the synthesis of phosphonites [RP(OEt)2, 1] and H-phosphinates [HP(O)R(OEt), 2] from triethyl phosphite and appropriate Grignard reagents.