72019-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72019-21-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,0,1 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 72019-21:
(7*7)+(6*2)+(5*0)+(4*1)+(3*9)+(2*2)+(1*1)=97
97 % 10 = 7
So 72019-21-7 is a valid CAS Registry Number.
72019-21-7Relevant articles and documents
Palladium-catalyzed preparation of dialkyl allylphosphonates. A new preparation of diethyl 2-oxoethylphosphonate
Malet,Moreno-Manas,Pleixats
, p. 2219 - 2228 (2007/10/02)
Palladium-catalyzed Michaelis-Arbuzov reaction of allyl acetates with trialkyl phosphites affords dialkyl allylphosphonates. Diethyl 2-oxoethylphosphonate is efficiently prepared by ozonization of diethyl allylphosphonate.
