123394-08-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123394-08-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,3,9 and 4 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 123394-08:
(8*1)+(7*2)+(6*3)+(5*3)+(4*9)+(3*4)+(2*0)+(1*8)=111
111 % 10 = 1
So 123394-08-1 is a valid CAS Registry Number.
123394-08-1Relevant articles and documents
THE SERIES OF SUBSTITUTED BUTANOLIDES AND BUTENOLIDES. IV. 4-ARYLIDENE(HETEROARYLIDENE)-2-BUTENOLIDES
Sorotskaya, L.N.,Badovskaya, L.A.,Kaklyugina, T.Ya.,Belenkii, L.A.,Ignatenko, A.V.,et al.
, p. 159 - 165 (2007/10/02)
A larger number of 4-arylidene- and 4-heteroarylidene-2-butenolides were obtained by the reaction of 2-butenolide with aromatic and heteroaromatic aldehydes in the presence of piperidine.