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128443-38-9

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128443-38-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128443-38-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,4,4 and 3 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128443-38:
(8*1)+(7*2)+(6*8)+(5*4)+(4*4)+(3*3)+(2*3)+(1*8)=129
129 % 10 = 9
So 128443-38-9 is a valid CAS Registry Number.

128443-38-9Downstream Products

128443-38-9Relevant articles and documents

Oxygen transfer reactions from an oxaziridinium tetrafluoroborate salt to olefins

Lusinchi, Xavier,Hanquet, Gilles

, p. 13727 - 13738 (2007/10/03)

Oxaziridinium 5 efficiently epoxidises olefins. It reacts as an electrophilic reagent and does not transfer its oxygen to deactivated double-bonds or carbonyl functions. Epoxidation of cyclic allylic acetates shows a remarkable diastereoselectivity leading to the syn isomer. We propose that the epoxidation reaction proceeds through a one-step process.

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