209404-33-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209404-33-1 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, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 209404-33:
(8*2)+(7*0)+(6*9)+(5*4)+(4*0)+(3*4)+(2*3)+(1*3)=111
111 % 10 = 1
So 209404-33-1 is a valid CAS Registry Number.
209404-33-1Relevant 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 (2007/10/03)
Aldol condensation between phenylacetates and benzaldehydes affords 2,3- diaryl-3-hydroxypropanoates which are converted into pt pans in moderate to high yields.
