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1192181-61-5

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1192181-61-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1192181-61-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,2,1,8 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1192181-61:
(9*1)+(8*1)+(7*9)+(6*2)+(5*1)+(4*8)+(3*1)+(2*6)+(1*1)=145
145 % 10 = 5
So 1192181-61-5 is a valid CAS Registry Number.

1192181-61-5Relevant articles and documents

Synthesis of (2-arylethylidene)cyclobutanes by palladium-catalyzed reactions of aryl halides with homoallyl alcohols bearing a trimethylene group at the allylic position

Iwasaki, Masayuki,Yorimitsu, Hideki,Oshima, Koichiro

, p. 2177 - 2179 (2011/03/20)

Treatment of aryl bromides with homoallyl alcohols bearing a trimethylene group at the allylic position in the presence of cesium carbonate under palladium catalysis affords (2-arylethylidene) cyclobutanes selectively. The selective formation of the alkylidenecyclobutane skeleton results from regiospecific retroallylation of the homoallyl alcohols, which accompanies the transposition of the double bonds. Georg Thieme Verlag Stuttgart.

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