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1234340-54-5

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1234340-54-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1234340-54-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,4,3,4 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1234340-54:
(9*1)+(8*2)+(7*3)+(6*4)+(5*3)+(4*4)+(3*0)+(2*5)+(1*4)=115
115 % 10 = 5
So 1234340-54-5 is a valid CAS Registry Number.

1234340-54-5Downstream Products

1234340-54-5Relevant articles and documents

Direct Pd-catalyzed benzylation of highly electron-deficient perfluoroarenes

Fan, Shilu,He, Chun-Yang,Zhang, Xingang

, p. 4926 - 4928 (2010)

An efficient and practical method to a wide range of perfluorinated unsymmetrical diarylmethanes with good to excellent yields and high regioselectivities has been developed by Pd-catalyzed direct benzylation of highly electron-deficient perfluoroarenes; excellent compatibility of functional groups has also been established.

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