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256341-03-4

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256341-03-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 256341-03-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,3,4 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 256341-03:
(8*2)+(7*5)+(6*6)+(5*3)+(4*4)+(3*1)+(2*0)+(1*3)=124
124 % 10 = 4
So 256341-03-4 is a valid CAS Registry Number.

256341-03-4Relevant articles and documents

A versatile synthesis of tetraester polyamine lipids for gene transfection

Lizarzaburu, Mike E.,Kurth, Mark J.,Nantz, Michael H.

, p. 8985 - 8988 (2007/10/03)

The preparation of polyamine lipids via Michael addition of diamines to tetraester bisacrylates is described. A new pentaerythritol protection strategy enabled the synthesis of a bis(p-methoxybenzyl)diether diol which was used to prepare the saturated and unsaturated diester cores.

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