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118348-88-2

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118348-88-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118348-88-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,3,4 and 8 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 118348-88:
(8*1)+(7*1)+(6*8)+(5*3)+(4*4)+(3*8)+(2*8)+(1*8)=142
142 % 10 = 2
So 118348-88-2 is a valid CAS Registry Number.

118348-88-2Upstream product

118348-88-2Downstream Products

118348-88-2Relevant articles and documents

A CONTRIBUTION TO PEROXY ACID OXIDATION OF α,β-UNSATURATED KETONES AND LINEARLY CONJUGATED DIENONES: REACTIONS IN THE CHOLESTANE SERIES

Cerny, Vaclav,Budesinsky, Milos,Ryba, Milos,Turecek, Frantisek

, p. 1549 - 1567 (2007/10/02)

Oxidation with 3-chloroperoxybenzoic acid of s-cis α,β-unsaturated ketones IX, XI and s-trans types X, XII was compared.The s-cis ketones show higher reactivity and furnish a higher yield of the corresponding α,β-epoxy ketones than the s-trans ketones.Products of the Baeyer-Villiger reaction are formed only in low yield.The dienone VI is oxidized predominantly to VII thus violating the rule that linear conjugated dienones are epoxidized at the double bond more distant from the carbonyl group; this result is in accord with the behaviour of s-cis α,β-unsaturated ketones. 1H NMR and 13C NMR data of the starting compounds and of the products are reported.

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