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103047-73-0

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103047-73-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103047-73-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,0,4 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 103047-73:
(8*1)+(7*0)+(6*3)+(5*0)+(4*4)+(3*7)+(2*7)+(1*3)=80
80 % 10 = 0
So 103047-73-0 is a valid CAS Registry Number.

103047-73-0Relevant articles and documents

Synthesis of optically pure gomisin A and schizandrin: The first total synthesis of gomisin A and schizandrin having naturally occurring configurations

Tanaka,Mukaiyama,Mitsuhashi,Wakamatsu

, p. 4165 - 4168 (2007/10/02)

The total synthesis of gomisin A and schizandrin having natural configurations were accomplished for the first time. The key feature of these syntheses is a highly efficient intramolecular oxidative coupling of the intermediates 9 and 21, which can be obtained as both enantiomers in optically pure forms. The manipulation of the lactone moieties of 7 and 22 afforded natural enantiomers of schizandrin and gomisin A.

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