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108574-55-6

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108574-55-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 108574-55-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,5,7 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 108574-55:
(8*1)+(7*0)+(6*8)+(5*5)+(4*7)+(3*4)+(2*5)+(1*5)=136
136 % 10 = 6
So 108574-55-6 is a valid CAS Registry Number.

108574-55-6Relevant articles and documents

Reaction des vinylogues d'hemiacetals avec les ethers d'enols β-heterosubstitues : nouvelle synthese et cyclisation de composes δ-dicarbonyles α-heterosubstitues

Poirier, Jean-Marie,Hennequin, Laurent,Fomani, Marie

, p. 436 - 448 (2007/10/02)

Reaction of hemiacetal vinylogs 1 in the presence of boron trifluoride etherate with silyl enol ethers 2 or 3 prepared from α-heterosubstituted ketones 7 or 9 yields α-halo δ-dicarbonyl compounds 4 (X = Cl, Br) or α-methoxy δ-dicarbonyl compounds 5.When s

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