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1630043-93-4

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1630043-93-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1630043-93-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,0,0,4 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1630043-93:
(9*1)+(8*6)+(7*3)+(6*0)+(5*0)+(4*4)+(3*3)+(2*9)+(1*3)=124
124 % 10 = 4
So 1630043-93-4 is a valid CAS Registry Number.

1630043-93-4Downstream Products

1630043-93-4Relevant articles and documents

Synthesis of N,N-dialkyl-5(or 10)-oxobenzo[B][1,8 or 1,7(or 1,6)]naphthyridine-10(5H)(or 5(10H))-carbothioamides based on the reaction of the respective (chloropyridinyl)(2-isothiocyanatophenyl)methanones with secondary amines

Kobayashi, Kazuhiro,Nakagawa, Kazuhiro,Inouchi, Hiroki

, p. 1687 - 1695 (2014/07/08)

The addition of secondary amines to (2-chloropyridin-3-yl)(2- isothiocyanatophenyl)methanone, derived from 2-chloropyridine and N-(2- formylphenyl)formamide, followed by treatment of the resulting thiourea intermediates with sodium hydride has proven to provide a method for the synthesis of N,N-dialkyl-5-oxobenzo[b][1,8]naphthyridine-10(5H)- carbothioamides. Similarly, N,N-dialkyl-5-oxobenzo[b][1,7]naphthyridine- 10(5H)-carbothioamides and N,N-dialkyl-10-oxobenzo[b][1,6]naphthyridine- 5(10H)-carbothioamides can be prepared from the respective (chloropyridinyl)(2- isothiocyanatophenyl)methanones.

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