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160146-80-5

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160146-80-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 160146-80-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,0,1,4 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 160146-80:
(8*1)+(7*6)+(6*0)+(5*1)+(4*4)+(3*6)+(2*8)+(1*0)=105
105 % 10 = 5
So 160146-80-5 is a valid CAS Registry Number.

160146-80-5Relevant articles and documents

A new candidate for a properly substituted CD ring component of vitamin D3 via intramolecular asymmetric olefination of a 1,3-cyclopentanedione derivative

Mandai,Kaihara,Tsuji

, p. 5847 - 5849 (2007/10/02)

A highly diastereoselective synthesis of hydrindenone derivative 5 (98% de) was achieved via diastereotopic differentiation of 1,3-cyclopentanedione derivative 4 by intramolecular Horner-Emmons olefination. In addition, the compound 5 was converted to ketone 2, a new building block for 1α,25-dihydroxyvitamin D3 (1).

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