Cas 73453-32-4,4,4'-dimethyl-1,1'-binaphthalene

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Check Digit Verification of cas no

The CAS Registry Mumber 73453-32-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,4,5 and 3 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 73453-32:
(7*7)+(6*3)+(5*4)+(4*5)+(3*3)+(2*3)+(1*2)=124
124 % 10 = 4
So 73453-32-4 is a valid CAS Registry Number.

73453-32-4Upstream product

90-12-0 1-Methylnaphthalene

73453-32-4Downstream Products

73453-32-4Relevant academic research and scientific papers

Selective synthesis of 1,1'-binaphthalene derivatives by oxidative coupling with TiCl4

Doussot, Jo?l,Guy, Alain,Ferroud, Clotilde

, p. 2545 - 2547 (2000)

Oxidative coupling of naphthalene compounds with TiCl4 in nitromethane under mild conditions gives symmetrical 1,1'-binaphthyls in good yields. The method is particularly useful when applied to substrates with electron donating groups. (C) 2000 Elsevier Science Ltd.

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