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Toluene-4-sulfonic acid (1R,3R)-2,2-difluoro-3-phenyl-cyclopropylmethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81635-04-3

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81635-04-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81635-04-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,3 and 5 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81635-04:
(7*8)+(6*1)+(5*6)+(4*3)+(3*5)+(2*0)+(1*4)=123
123 % 10 = 3
So 81635-04-3 is a valid CAS Registry Number.

81635-04-3Relevant academic research and scientific papers

A STEREOSPECIFIC SYNTHESIS OF CONJUGATED FLUORODIENES BY A RING-OPENING REACTION OF gem-DIFLUOROCYCLOPROPANE DERIVATIVES

Kobayashi, Yoshiro,Morikawa, Tsutomo,Yoshizawa, Atsuko,Taguchi, Takeo

, p. 5297 - 5300 (2007/10/02)

Ring-opening reactions of trans- and cis -gem-difluorocyclopropane derivatives (1) with appropriate bases proceeded stereospecifically to give (E,E)- and (E,Z)-fluorodiene derivatives (2), respectively.

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