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173914-18-6

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173914-18-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 173914-18-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,9,1 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 173914-18:
(8*1)+(7*7)+(6*3)+(5*9)+(4*1)+(3*4)+(2*1)+(1*8)=146
146 % 10 = 6
So 173914-18-6 is a valid CAS Registry Number.

173914-18-6Relevant articles and documents

Binaphthol-titanium-promoted, highly enantiocontrolled, Diels-Alder cycloadditions of electronically matched 2-pyrones and vinyl ethers: Streamlined asymmetric synthesis of an A-ring precursor to physiologically active 1α-hydroxyvitamin D3 ster

Posner,Eydoux,Lee,Bull

, p. 7541 - 7544 (2007/10/02)

Bicyclic lactones 4, A-ring precursors to diverse physiologically active 1α-hydroxyvitamin D3 analogs, were prepared in excellent yields and enantiomeric purities via chiral, non-racemic Lewis acid-promoted, mild, inverse-electron-demand 4+2-cy

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