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19962-24-4

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19962-24-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19962-24-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,6 and 2 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 19962-24:
(7*1)+(6*9)+(5*9)+(4*6)+(3*2)+(2*2)+(1*4)=144
144 % 10 = 4
So 19962-24-4 is a valid CAS Registry Number.

19962-24-4Relevant articles and documents

Benzyl protection of phenols under neutral conditions: Palladium-catalyzed benzylations of phenols

Kuwano, Ryoichi,Kusano, Hiroki

supporting information; experimental part, p. 1979 - 1982 (2009/04/10)

Benzyl protection of phenols under neutral conditions was achieved by using a Pd(n3-C3H5)Cp-DPEphos catalyst. The palladium catalyst efficiently converted aryl benzyl carbonates into benzyl-protected phenols through the decarboxylative etherification. Alternatively, the nucleophilic substitution of benzyl methyl carbonates with phenols proceeded In the presence of the catalyst, yielding aryl benzyl ethers.

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