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204253-44-1

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204253-44-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204253-44-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,2,5 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 204253-44:
(8*2)+(7*0)+(6*4)+(5*2)+(4*5)+(3*3)+(2*4)+(1*4)=91
91 % 10 = 1
So 204253-44-1 is a valid CAS Registry Number.

204253-44-1Relevant articles and documents

Solid-phase synthesis of peptidomimetic oligomers with a phosphodiesterase backbone

Lin, Peishan,Ganesan

, p. 511 - 514 (2007/10/03)

An unnatural biopolymer is described in which amino acid side-chains are presented along a negatively charged phosphodiester backbone. For this purpose, a series of phosphoramidite monomers was prepared from chiral 1,2-diols. These were efficiently converted into oligomers using standard coupling conditions on an automated DNA synthesizer.

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