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4426-31-7

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4426-31-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4426-31-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,2 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4426-31:
(6*4)+(5*4)+(4*2)+(3*6)+(2*3)+(1*1)=77
77 % 10 = 7
So 4426-31-7 is a valid CAS Registry Number.

4426-31-7Relevant articles and documents

Organosubstituted 2,5-Dihydro-1,2,5-oxoniasilaboratoles - Characterization and Reactivity

Koester, Roland,Seidel, Guenter,Wrackmeyer, Bernd

, p. 1003 - 1016 (2007/10/02)

The potassium salt of the anions , prepared from the organosubstituted cis-2-boryl-1-silylalkenes 1a-d and KOH, react with the electrophiles R1Hal IV: ClElIV(CH3)3, ElIV = Si, Ge, Sn, Pb> to give the neutral five-membered ring compounds .On heating of 3H or 3Sn either ethyl migration occurs to yield the saturated diasteromers , or elimination of ethane takes place to give the unsaturated compounds .The reaction of 2 with ClPb(CH3)3 leads to 3Pb (11B-NMR), which exclusively form 5 with elimination of C2H5Pb(CH3)3.

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