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1277175-25-3

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1277175-25-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1277175-25-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,7,1,7 and 5 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1277175-25:
(9*1)+(8*2)+(7*7)+(6*7)+(5*1)+(4*7)+(3*5)+(2*2)+(1*5)=173
173 % 10 = 3
So 1277175-25-3 is a valid CAS Registry Number.

1277175-25-3Relevant articles and documents

Synthesis of 3-aryl-2-arylamidobenzofurans based on the curtius rearrangement

Carrer, Amandine,Florent, Jean-Claude,Auvrouin, Emilie,Rousselle, Patricia,Bertounesque, Emmanuel

, p. 2502 - 2520 (2011/06/24)

The synthesis of novel 3-aryl-2-arylamidobenzofurans has been accomplished via a Curtius rearrangement strategy in four steps from benzofuran-2-carboxylic acids. The requisite Suzuki-Miyaura cross-coupling, with benzyl 3-bromobenzofuran-2-ylcarbamate or 2

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