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98242-53-6

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98242-53-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98242-53-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,2,4 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 98242-53:
(7*9)+(6*8)+(5*2)+(4*4)+(3*2)+(2*5)+(1*3)=156
156 % 10 = 6
So 98242-53-6 is a valid CAS Registry Number.

98242-53-6Relevant articles and documents

Novel and improved process for the preparation of citalopram

Reddy, M. Pulla,Bhujanga Rao,Usharani,Dubey

, p. 1829 - 1832 (2012/01/13)

A novel process for the preparation of citalopram (1) has been described. The key intermediate 1-(4-fluorophenyl)-1,3-dihydroisobenzofuran- 5-carbonitrile (2) of citalopram is prepared using novel intermediates. The process involves simple acylation, hydrolysis and reduction, which can be easily adapted to commercial scale.

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