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183547-04-8

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183547-04-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 183547-04-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,5,4 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 183547-04:
(8*1)+(7*8)+(6*3)+(5*5)+(4*4)+(3*7)+(2*0)+(1*4)=148
148 % 10 = 8
So 183547-04-8 is a valid CAS Registry Number.

183547-04-8Relevant articles and documents

Sulfonyl esters 7. The second and third sequences in the Trithioorthoformate Reaction

Ginige, Kashyapa Ananda,Goehl, John Edward,Langler, Richard Francis

, p. 1638 - 1648 (2007/10/03)

A previous report has established the intermediacy of a sulfide-sulfonate ester in the one-pot conversion of an aryl mercaptan and a sulfonate ester into the corresponding trithioorthoformate. This report describes evidence for the sequential intermediacy of a bissulfide-sulfonate ester and a dithiosulfene in the conversion of the sulfide-sulfonate ester into the trithioorthoformate. A new sulfonate ester is shown to give the highest yield of trithioorthoformate.

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