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904744-29-2

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904744-29-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 904744-29-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,4,7,4 and 4 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 904744-29:
(8*9)+(7*0)+(6*4)+(5*7)+(4*4)+(3*4)+(2*2)+(1*9)=172
172 % 10 = 2
So 904744-29-2 is a valid CAS Registry Number.

904744-29-2Downstream Products

904744-29-2Relevant articles and documents

Metal-catalyzed cycloisomerization of enyne functionalities via a 1,3-alkylidene migration

Lin, Ming-Yuan,Das, Arindam,Liu, Rai-Shung

, p. 9340 - 9341 (2007/10/03)

We report a new metal-catalyzed 6-endo-dig cyclization of cis-4,6-dien-1-yn-3-ols, which produces substituted benzene and naphthalene derivatives with structural reorganization. In this process, we observe a 1,3-alkylidene migration via cleavage of the olefin double bond of the starting substrates. The ease and reliability of this cyclization are manifested by its compatibility with a wide array of diverse substrates and several π-alkyne activators, including PtCl2, Zn(OTf)2, AuCl, and AuCl3. Copyright

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