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53511-33-4

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53511-33-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53511-33-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,5,1 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 53511-33:
(7*5)+(6*3)+(5*5)+(4*1)+(3*1)+(2*3)+(1*3)=94
94 % 10 = 4
So 53511-33-4 is a valid CAS Registry Number.

53511-33-4Relevant articles and documents

Regioselective synthesis of 4-alkyl- and 4-aryl-6-(perfluoroalkyl)salicylic acid derivatives by formal [3+3] cyclocondensation of 1,3-bis(silyloxy)-1,3-butadienes with 3-silyloxy-1-(perfluoroalkyl)prop-2-en-1-ones

Büttner, Stefan,Lubbe, Mathias,Reinke, Helmut,Fischer, Christine,Langer, Peter

, p. 7968 - 7976 (2008/12/20)

4-Alkyl- and 4-aryl-6-(perfluoroalkyl)salicylic acid derivatives were regioselectively prepared by [3+3] cyclization of 1,3-bis(silyl enol ethers) with 3-silyloxy-1-(perfluoroalkyl)prop-2-en-1-ones.

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