1242053-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1242053-91-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,2,0,5 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1242053-91:
(9*1)+(8*2)+(7*4)+(6*2)+(5*0)+(4*5)+(3*3)+(2*9)+(1*1)=113
113 % 10 = 3
So 1242053-91-3 is a valid CAS Registry Number.
1242053-91-3Relevant academic research and scientific papers
Synthesis of regioisomeric naphtho-furans via naphthyloxyalkanals
Kwiecien,Witczak,Kowalewska,Augustyniak
experimental part, p. 20 - 29 (2010/08/06)
A new route to the regioisomeric 2-alkylnaphtho[2,1-b]- and 2-alkylnaphtho[1,2-b]furans via acid-catalyzed cyclization of the corresponding 2-naphthyloxyalkanals under mild conditions over Amberlyst 15 resin has been described. The 2-naphthyloxyalkanals w
