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204326-27-2

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204326-27-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204326-27-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,3,2 and 6 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 204326-27:
(8*2)+(7*0)+(6*4)+(5*3)+(4*2)+(3*6)+(2*2)+(1*7)=92
92 % 10 = 2
So 204326-27-2 is a valid CAS Registry Number.

204326-27-2Relevant articles and documents

The utilization of secondary phosphine oxide synthons for the preparation of novel tertiary phosphine oxide modified DNA

Collingwood, Stephen P.,Taylor, Roger J.

, p. 283 - 285 (2007/10/03)

Novel tertiary phosphine oxides are described which act as masked secondary phosphine oxides. The protection of the reactive P-H bond allows generation of a carbanion alpha to phosphorus and subsequent alkylation with an oxetane. The free P-H can then be liberated with anhydrous acid. This functionality can then be further alkylated to generate novel tertiary phosphine oxide backbone modified DNA.

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