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199180-32-0

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199180-32-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199180-32-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,1,8 and 0 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 199180-32:
(8*1)+(7*9)+(6*9)+(5*1)+(4*8)+(3*0)+(2*3)+(1*2)=170
170 % 10 = 0
So 199180-32-0 is a valid CAS Registry Number.

199180-32-0Relevant academic research and scientific papers

Studies toward the synthesis of popolohuanone E: Synthesis of natural (+)-arenarol related to the proposed biogenetic precursor of popolohuanone E

Kawano, Hideki,Itoh, Masanori,Katoh, Tadashi,Terashima, Shiro

, p. 7769 - 7772 (2007/10/03)

The cis-fused decalin segment 6 required for the total synthesis of popolohuanone E (1) was efficiently synthesized starting from the enantiomerically pure (-)-Wieland-Miescher ketone derivative 9; the method features ortho ester Claisen rearrangement of

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