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1256841-99-2

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1256841-99-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1256841-99-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,8,4 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1256841-99:
(9*1)+(8*2)+(7*5)+(6*6)+(5*8)+(4*4)+(3*1)+(2*9)+(1*9)=182
182 % 10 = 2
So 1256841-99-2 is a valid CAS Registry Number.

1256841-99-2Downstream Products

1256841-99-2Relevant academic research and scientific papers

Enantioselective desymmetrization of cyclopropenes by hydroacylation

Phan, Diem H. T.,Kou, Kevin G. M.,Dong, Vy M.

supporting information; experimental part, p. 16354 - 16355 (2011/02/24)

We report an enantioselective desymmetrization of cyclopropenes by intermolecular Rh-catalyzed hydroacylation. Cyclopropylketones, bearing quaternary stereocenters, are produced with diastereocontrol (up to >20:1) and excellent enantiomeric excess (up to >99 ee).

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