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49769-28-0

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49769-28-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 49769-28-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,7,6 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 49769-28:
(7*4)+(6*9)+(5*7)+(4*6)+(3*9)+(2*2)+(1*8)=180
180 % 10 = 0
So 49769-28-0 is a valid CAS Registry Number.

49769-28-0Relevant articles and documents

Copper-Free Sonogashira coupling in water with an amphiphilic resin-supported palladium complex

Suzuka, Toshimasa,Okada, Yukari,Ooshiro, Kazumasa,Uozumi, Yasuhiro

, p. 1064 - 1069 (2010)

The palladium-catalyzed coupling reaction of aryl halides with terminal alkynes, the Sonogashira coupling, took place in water under copper-free conditions by use of an amphiphilic polystyrene-poly(ethylene glycol) (PS-PEG) resin-supported palladium-phosphine complex to give the corresponding aryl-substituted alkynes in high yields. The PS-PEG resin-supported palladium catalyst was recovered by simple filtration and reused four times without any loss of catalytic activity.

Macrocyclization by nickel-catalyzed, ester-promoted, epoxide-alkyne reductive coupling: Total synthesis of (-)-gloeosporone

Trenkle, James D.,Jamison, Timothy F.

supporting information; experimental part, p. 5366 - 5368 (2009/11/30)

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CAPSAICIN DERIVATES AND THE PRODUCTION AND USE THEREOF

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Page/Page column 17; 20, (2010/02/11)

The invention relates to new compounds, namely capsaicin derivates, a new method for their production, and their use as micro-organism-repellent agents in paints and coatings, in particular for marine installations and ships, but also for land-based struc

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