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497069-15-5

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497069-15-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 497069-15-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,7,0,6 and 9 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 497069-15:
(8*4)+(7*9)+(6*7)+(5*0)+(4*6)+(3*9)+(2*1)+(1*5)=195
195 % 10 = 5
So 497069-15-5 is a valid CAS Registry Number.

497069-15-5Relevant articles and documents

A mild deprotection strategy for allyl-protecting groups and its implications in sequence specific dendrimer synthesis

Vutukuri, Dharma Rao,Bharathi, Pandi,Yu, Zhouying,Rajasekaran, Karthik,Tran, My-Huyen,Thayumanavan

, p. 1146 - 1149 (2003)

A mild deprotection strategy for allyl ethers under basic conditions in the presence of a palladium catalyst is described. Under these conditions, aryl allyl ethers can be cleaved selectively in the presence of alkyl allyl ethers. These conditions are also effective in the deprotection of allyloxycarbonyl groups. The utility of the current methodology in sequence specific dendrimer synthesis is demonstrated.

Functional group diversity in dendrimers

Sivanandan, Kulandaivelu,Vutukuri, Dharmarao,Thayumanavan

, p. 3751 - 3753 (2007/10/03)

(graph presented) A methodology for synthesizing dendrons with different peripheral functionalities is described. The benzyl ether-based dendrons reported here were synthesized using allyl and methoxymethyl ether-based protection-deprotection strategies.

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