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852805-34-6

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852805-34-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 852805-34-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,2,8,0 and 5 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 852805-34:
(8*8)+(7*5)+(6*2)+(5*8)+(4*0)+(3*5)+(2*3)+(1*4)=176
176 % 10 = 6
So 852805-34-6 is a valid CAS Registry Number.

852805-34-6Downstream Products

852805-34-6Relevant articles and documents

New chemoenzymatic pathway for β-adrenergic blocking agents

Kamal, Ahmed,Khanna, G.B. Ramesh,Krishnaji,Tekumalla, Venkatesh,Ramu

, p. 1485 - 1494 (2007/10/03)

The lipase mediated kinetic resolution of pharmaceutically important β-hydroxy nitriles is described in high enantiomeric excesses and good yields. Some of the chiral β-hydroxy nitriles have been employed in the synthesis of β-adrenergic blocking agents such as propranolol, alprenolol and moprolol. This protocol has also been extended for the enantiopure preparation of 5-(4-tosyloxymethyl)-1,3-oxazolidine-2-one and 3-hydroxy-4-tosyloxybutanenitrile, chiral intermediates of high synthetic value.

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