Cas 140239-67-4,C29H25NO6S

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Check Digit Verification of cas no

The CAS Registry Mumber 140239-67-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,2,3 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 140239-67:
(8*1)+(7*4)+(6*0)+(5*2)+(4*3)+(3*9)+(2*6)+(1*7)=104
104 % 10 = 4
So 140239-67-4 is a valid CAS Registry Number.

140239-67-4Upstream product

140239-64-1 C₃₁H₂₉NO₆S

140239-67-4Downstream Products

140239-67-4Relevant academic research and scientific papers

The pagodane route to dodecahedranes - Unsaturated dodecahedranes, protection and deprotection

Weber,Fritz,Prinzbach

, p. 619 - 622 (2007/10/02)

Monounsaturated, highly pyramidalized, highly reactive (i.ea. dienophilic, dipolarophilic) dodecahedranes (2,10) are prepared from an adequately functionalized bisseco substrate. Cheletropic (-N2O; -SO2) and retro-DA reactions are probed as potential methodologies in the preparation of dodecahedrapolyenes.

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