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175439-34-6

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175439-34-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 175439-34-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,5,4,3 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 175439-34:
(8*1)+(7*7)+(6*5)+(5*4)+(4*3)+(3*9)+(2*3)+(1*4)=156
156 % 10 = 6
So 175439-34-6 is a valid CAS Registry Number.

175439-34-6Relevant articles and documents

Efficient one-to-one coupling of easily available 1,3-dienes with carbon dioxide

Takaya, Jun,Sasano, Kota,Iwasawa, Nobuharu

, p. 1698 - 1701 (2011/05/04)

An efficient one-to-one coupling reaction of atmospheric pressure carbon dioxide with 1,3-dienes is realized for the first time through PSiP-pincer type palladium-catalyzed hydrocarboxylation. The reaction is applicable to various 1,3-dienes including easily available chemical feedstock such as 1,3-butadiene and isoprene. This protocol affords a highly useful method for the synthesis of β,γ-unsaturated carboxylic acid derivatives from CO2.

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