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40123-24-8

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40123-24-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40123-24-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,1,2 and 3 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 40123-24:
(7*4)+(6*0)+(5*1)+(4*2)+(3*3)+(2*2)+(1*4)=58
58 % 10 = 8
So 40123-24-8 is a valid CAS Registry Number.

40123-24-8Downstream Products

40123-24-8Relevant articles and documents

Pentamethylphenyl (Ph*) and Related Derivatives as Useful Acyl Protecting Groups for Organic Synthesis: A Preliminary Study

Cheong, Choon Boon,Frost, James R.,Donohoe, Timothy J.

, p. 1828 - 1832 (2020)

A study of acyl protecting groups derived from the Ph? motif is reported. While initial studies indicated that a variety of functional groups were not compatible with the Br 2-mediated cleavage conditions required to release the Ph? group, strategies involving the use of different reagents or a modification of Ph? itself (Ph*OH) were investigated to solve this problem.

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