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246832-22-4

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246832-22-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 246832-22-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,6,8,3 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 246832-22:
(8*2)+(7*4)+(6*6)+(5*8)+(4*3)+(3*2)+(2*2)+(1*2)=144
144 % 10 = 4
So 246832-22-4 is a valid CAS Registry Number.

246832-22-4Relevant articles and documents

A cost-effective, column-free route to ethylene glycol oligomers EG 6, EG10, and EG12

Gothard, Chris M.,Grzybowski, Bartosz A.

, p. 717 - 722 (2012)

Although monodisperse ethylene glycol (EG) oligomers are important in a wide range of applications (ranging from drug therapeutics to materials science and engineering), their cost - especially for longer EG oligomers is often prohibitive. For example, decaethylene, EG10, and dodecaethylene, EG12, glycols cost hundreds of dollars per gram, and are only available from most vendors, including Sigma-Aldrich, in the polydispersed form. This high-cost is, in large part, due to laborious nature of synthesis and, above all, purification steps involved. Therefore, the motivation of our work was to design a cost-effective route to the EG oligomers that would altogether avoid the column-chromatography purification. This was achieved by a simple synthetic strategy, which combines bidirectional growth of the EG chains with the protection scheme using easy-to-remove trityl groups. Georg Thieme Verlag Stuttgart · New York.

Synthesis and properties of ABA amphiphiles

Chen, Yiyan,Baker, Gregory L.

, p. 6870 - 6873 (2007/10/03)

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