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1242053-89-9

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1242053-89-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1242053-89-9 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, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1242053-89:
(9*1)+(8*2)+(7*4)+(6*2)+(5*0)+(4*5)+(3*3)+(2*8)+(1*9)=119
119 % 10 = 9
So 1242053-89-9 is a valid CAS Registry Number.

1242053-89-9Upstream product

1242053-89-9Downstream Products

1242053-89-9Relevant academic research and scientific papers

Synthesis of regioisomeric naphtho-furans via naphthyloxyalkanals

Kwiecien,Witczak,Kowalewska,Augustyniak

, p. 20 - 29 (2010)

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

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