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28048-99-9

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28048-99-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28048-99-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,0,4 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 28048-99:
(7*2)+(6*8)+(5*0)+(4*4)+(3*8)+(2*9)+(1*9)=129
129 % 10 = 9
So 28048-99-9 is a valid CAS Registry Number.

28048-99-9Relevant articles and documents

The Ireland-Claisen rearrangement as a probe for the diastereoselectivity of nucleophilic attack on a double bond adjacent to a stereogenic centre carrying a silyl group

Betson, Mark S.,Fleming, Ian

, p. 4005 - 4016 (2007/10/03)

The E- and Z-silyl enol ethers 4 derived from allyl 3-R-3-dimethyl(phenyl)silylpropanoate (R = Me, Pri and Ph) and the Z-silyl enol ethers 7 derived from 4-R-4-dimethyl(phenyl)silylbut-2-enyl acetate (R = Me and Pri) undergo Ireland-

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