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246862-23-7

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246862-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 246862-23-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,6,8,6 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 246862-23:
(8*2)+(7*4)+(6*6)+(5*8)+(4*6)+(3*2)+(2*2)+(1*3)=157
157 % 10 = 7
So 246862-23-7 is a valid CAS Registry Number.

246862-23-7Relevant articles and documents

A convergent asymmetric synthesis of γ-butenolides

Renard, Marc,Ghosez, Léon A.

, p. 2597 - 2608 (2007/10/03)

The addition of aldehydes to the new enantiomerically pure lithiated sulfoxide-orthoester 13 yielded γ-butenolides of high enantiomeric purities after elimination of phenylsulfinic acid. The cyclocondensation with ketones was less stereoselective. This new asymmetric synthesis of γ-butenolides has been applied to a convergent preparation of the antifungal antibiotic (+)-cerulenin.

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