Cas 1217677-80-9,2-(3,4,4-triphenylbut-3-en-1-ynyl)thiophene

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Check Digit Verification of cas no

The CAS Registry Mumber 1217677-80-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,6,7 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1217677-80:
(9*1)+(8*2)+(7*1)+(6*7)+(5*6)+(4*7)+(3*7)+(2*8)+(1*0)=169
169 % 10 = 9
So 1217677-80-9 is a valid CAS Registry Number.

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1217677-80-9Relevant articles and documents

A single-step synthesis of enynes: Pd-catalyzed arylalkynylation of aryl iodides, internal alkynes, and alkynylsilanes

Sakai, Norio,Komatsu, Ryosuke,Uchida, Naoki,Ikeda, Reiko,Konakahara, Takeo

supporting information; experimental part, p. 1300 - 1303 (2010/06/15)

"Chemical Equation Presented" An unprecedented single-step synthesis of enyne derivatives through Pd-catalyzed arylalkynylation of aryl iodides, internal alkynes, and alkynylsilanes is described.

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1217677-80-9