209404-19-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209404-19-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,4,0 and 4 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 209404-19:
(8*2)+(7*0)+(6*9)+(5*4)+(4*0)+(3*4)+(2*1)+(1*9)=113
113 % 10 = 3
So 209404-19-3 is a valid CAS Registry Number.
209404-19-3Relevant articles and documents
The first direct synthesis of pterocarpans via aldol condensation of phenylacetates with benzaldehydes
Van Aardt, Theunis G.,Van Heerden, Pieter S.,Ferreira, Daneel
, p. 3881 - 3884 (1998)
Aldol condensation between phenylacetates and benzaldehydes affords 2,3- diaryl-3-hydroxypropanoates which are converted into pt pans in moderate to high yields.
