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34073-51-3

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34073-51-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34073-51-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,0,7 and 3 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 34073-51:
(7*3)+(6*4)+(5*0)+(4*7)+(3*3)+(2*5)+(1*1)=93
93 % 10 = 3
So 34073-51-3 is a valid CAS Registry Number.

34073-51-3Downstream Products

34073-51-3Relevant articles and documents

Orthoamides, LVI [1]. A new method of wide scope for the preparation of aryl formates

Ziegler, Georg,Kantlehner, Willi

, p. 1172 - 1177 (2001)

Aryl formates 4a-u, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26 are prepared by formylation of hydroxyarenes 3a-u, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25 with N,N-diformylacetamide (1) or triformamide (2), respectively, in fairly good yields. The reactions can be catalyzed by sodium diformamide or praseodymium(III) triflate. The thiolformate 28 was obtained analogously from 1-thionaphthol (27).

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