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131156-29-1

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131156-29-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131156-29-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,1,5 and 6 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 131156-29:
(8*1)+(7*3)+(6*1)+(5*1)+(4*5)+(3*6)+(2*2)+(1*9)=91
91 % 10 = 1
So 131156-29-1 is a valid CAS Registry Number.

131156-29-1Downstream Products

131156-29-1Relevant articles and documents

Regio- and Stereoselective Synthesis of (E)- and (Z)-Allylsulfones from Aldehydes and Alkynes

Ozawa, Motoyasu,Iwata, Noriyoshi,Kinoshita, Hideki,Inomata, Katsuhiko

, p. 1689 - 1692 (2007/10/02)

Several (E)- and (Z)-1-p-toluenesulfonyl(=tosyl)-2-alkenes, allylsulfones, were regio- and stereoselectively prepared from aldehydes and alkynes, respectively, in good yields by application of the results of our previous investigation on "syn-effect" and

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