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128982-50-3

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128982-50-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128982-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,8 and 2 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128982-50:
(8*1)+(7*2)+(6*8)+(5*9)+(4*8)+(3*2)+(2*5)+(1*0)=163
163 % 10 = 3
So 128982-50-3 is a valid CAS Registry Number.

128982-50-3Downstream Products

128982-50-3Relevant articles and documents

Synthesis of arrays using low molecular weight MPEG-assisted mitsunobu reaction

Figlus, Marek,Wellaway, Natalie,Cooper, Anthony W. J.,Sollis, Steven L.,Hartley, Richard C.

experimental part, p. 280 - 285 (2011/06/25)

Triphenylphosphine tagged with a short poly(ethyleneglycol)-ω- monomethyl ether chain (light MPEG, 10-16 ethylenoxy units, MTPP-G2) and an MPEG-tagged version of diethyl azodicarboxylate (MDEAD) have been used to prepare a 20 member library of esters, ethers, and sulfonamides, with cLogP?s in the range of 1.4-5.7 on a 0.1 mmol scale. Removal of MPEG-tagged side products was achieved by MPEG-assisted solid-phase extraction (MSPE) on prepacked silica columns to give the products in good yield and high purity.

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