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489452-98-4

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489452-98-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 489452-98-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,8,9,4,5 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 489452-98:
(8*4)+(7*8)+(6*9)+(5*4)+(4*5)+(3*2)+(2*9)+(1*8)=214
214 % 10 = 4
So 489452-98-4 is a valid CAS Registry Number.

489452-98-4Relevant articles and documents

The preparation of a fully differentiated "multiwarhead" siderophore precursor

Murray, Aaron P.,Miller, Marvin J.

, p. 191 - 194 (2007/10/03)

A protected, fully differentiated siderophore analogue has been prepared so that "Trojan Horse"-like siderophore drug conjugates with different drugs can be synthesized. The key steps in the synthesis include controlled preparation of an unsymmetrical urea and its conversion to a fully differentiated isocyanurate by reaction with chloro(carbonyl) isocyanate.

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