Cas 134281-80-4,4,4-dimethoxy-3-p-tolylsulfonylcyclohexa-2,5-dien-1-one

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Check Digit Verification of cas no

The CAS Registry Mumber 134281-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,2,8 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 134281-80:
(8*1)+(7*3)+(6*4)+(5*2)+(4*8)+(3*1)+(2*8)+(1*0)=114
114 % 10 = 4
So 134281-80-4 is a valid CAS Registry Number.

134281-80-4Upstream product

134281-72-4 3,3,6,6-tetramethoxy-1-p-tolylsulfonylcyclohexa-1,4-diene

134281-80-4Downstream Products

134281-80-4Relevant academic research and scientific papers

GENERAL SYNTHESIS OF CHIRAL 2-P-TOLYLSULFINYLQUINONES

Carreno, M. Carmen,Ruano, Jose L. Garcia,Mata, Jose M.,Urbano, Antonio

, p. 605 - 614 (2007/10/02)

Optically pure (S)-p-tolylsulfinyl substituted quinones were synthesized by deketalization of the corresponding quinone bisketals obtained by Andersen's type synthesis starting from 2-bromo-1,4-dimethoxy aromatic derivatives, followed by anodic oxidation

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