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1000556-86-4

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1000556-86-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1000556-86-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,0,5,5 and 6 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1000556-86:
(9*1)+(8*0)+(7*0)+(6*0)+(5*5)+(4*5)+(3*6)+(2*8)+(1*6)=94
94 % 10 = 4
So 1000556-86-4 is a valid CAS Registry Number.

1000556-86-4Upstream product

1000556-86-4Relevant articles and documents

Synthesis of γ-pyrones via decarboxylative condensation of β-ketoacids

Merad, Jérémy,Maier, Thomas,Rodrigues, Catarina A. B.,Maulide, Nuno

, p. 57 - 62 (2017/01/17)

Abstract: This manuscript describes the convergent synthesis of aryl- and alkyl-disubstituted γ-pyrones from β-ketoacids. The reaction proceeds in the presence of trifluoromethanesulfonic anhydride via an unprecedented decarboxylative auto-condensation of the starting material. Herein, the scope and limitations of this transformation are reported. Graphical abstract: [Figure not available: see fulltext.]

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