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1342843-72-4

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1342843-72-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1342843-72-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,4,2,8,4 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1342843-72:
(9*1)+(8*3)+(7*4)+(6*2)+(5*8)+(4*4)+(3*3)+(2*7)+(1*2)=154
154 % 10 = 4
So 1342843-72-4 is a valid CAS Registry Number.

1342843-72-4Downstream Products

1342843-72-4Relevant articles and documents

An efficient one-pot synthesis of pyrimido[2,1-b][1,3]thiazine derivatives by reaction of activated acetylenes, thiouracils, and isocyanides

Baharfar, Robabeh,Baghbanian, Seyed Meysam,Vahdat, Seyed Mohammad

, p. 6018 - 6020 (2011)

The reactive 1:1 zwitterionic intermediate, formed by the addition of isocyanides to dialkyl acetylenedicarboxylates, was trapped by thiouracils to yield a ketenimine intermediate, which cyclized and then rearranged to afford pyrimido[2,1-b][1,3]thiazines

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