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151919-56-1

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151919-56-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 151919-56-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,1,9,1 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 151919-56:
(8*1)+(7*5)+(6*1)+(5*9)+(4*1)+(3*9)+(2*5)+(1*6)=141
141 % 10 = 1
So 151919-56-1 is a valid CAS Registry Number.

151919-56-1Upstream product

151919-56-1Downstream Products

151919-56-1Relevant articles and documents

Hydration of Alkynes in Anhydrous Medium with Formic Acis as Water Donor

Menashe, Naim,Shvo, Youval

, p. 7434 - 7439 (1993)

Formic acid has been found to hydrate alkynes in the absence of water to give oxo products and carbon monoxide.The scope of the reaction of alkynes and formic acid has been delineated.Hydrocarbon alkynes were found to be reactive in the absence of catalyst.Functionalized alkynes, in particular oxygenated alkynes, are inert toward formic acid but can be activated catalytically with Ru3(CO)12.Consequently, all the tested types of alkynes were found to give oxo products and CO with formic acid.The mechanism of the reaction was examined.With some alkynes, the primary oxo products underwent secondary reactions that gave rise to unexpected products.

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