1123594-33-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1123594-33-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,2,3,5,9 and 4 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1123594-33:
(9*1)+(8*1)+(7*2)+(6*3)+(5*5)+(4*9)+(3*4)+(2*3)+(1*3)=131
131 % 10 = 1
So 1123594-33-1 is a valid CAS Registry Number.
1123594-33-1Relevant articles and documents
Synthesis and structure of unsymmetrical cross-conjugated dienones with thienyl substituents
Fomina,Golikov,Kriven'ko
experimental part, p. 706 - 708 (2009/04/07)
By condensation of thiophenecarbaldehyde and m-nitrobenzaldehyde with furyl-, thienylmethylenecyclohexanones in basic medium 2-(het)arylmethylene-6- thienylmethylenecyclohexanones were prepared. Under the conditions of acid catalysis analogously built die