219501-23-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219501-23-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,5,0 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 219501-23:
(8*2)+(7*1)+(6*9)+(5*5)+(4*0)+(3*1)+(2*2)+(1*3)=112
112 % 10 = 2
So 219501-23-2 is a valid CAS Registry Number.
219501-23-2Relevant academic research and scientific papers
A convenient synthesis of α-substituted vinylphosphonates based on dithio-and selenophosphates
Maciagiewicz,Dybowski,Skowronska
, p. 2389 - 2393 (2007/10/03)
A convenient synthesis of α-substituted vinylphosphonates based on the reaction of readily available S-(β-oxoalkyl)dithiophosphates and Se-(β-oxoalkyl)selenophosphates with sodium dialkyl phosphites is described.
