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73222-92-1

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73222-92-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73222-92-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,2,2 and 2 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 73222-92:
(7*7)+(6*3)+(5*2)+(4*2)+(3*2)+(2*9)+(1*2)=111
111 % 10 = 1
So 73222-92-1 is a valid CAS Registry Number.

73222-92-1Relevant articles and documents

An alternative synthesis of 2-alkylidene-3,4-dihydro-2 H-1,4-benzoxazines by intramolecular gold-catalyzed hydroalkoxylation of 2-(prop-2-yn-1-ylamino) phenols

Manzo, Angelo M.,Perboni, Alcide,Broggini, Gianluigi,Rigamonti, Micol

experimental part, p. 127 - 132 (2011/02/28)

An efficient gold-catalyzed procedure to synthesize 2-alkylidene-3,4- dihydro-2H-1,4-benzoxazines has been developed starting from 2-alkynyl-substituted phenols. This is an intramolecular hydroalkoxylation reaction on alkynes tethered to a phenol moiety that represents a valuable alternative to the already reported transition-metal-catalyzed procedures. Georg Thieme Verlag Stuttgart · New York.

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