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18289-63-9

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18289-63-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18289-63-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,2,8 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18289-63:
(7*1)+(6*8)+(5*2)+(4*8)+(3*9)+(2*6)+(1*3)=139
139 % 10 = 9
So 18289-63-9 is a valid CAS Registry Number.

18289-63-9Relevant articles and documents

Exploration of the molecular origin of the azinomycin epoxide: Timing of the biosynthesis revealed

Sharma, Vasudha,Kelly, Gilbert T.,Watanabe, Coran M. H.

supporting information; experimental part, p. 4815 - 4818 (2009/05/31)

(Equation Presented) Streptomyces sahachiroi whole cell feeding experiments, utilizing putative precursors labeled with stable isotopes, established that the epoxide unit of the DNA cross-linked agents, azinomycin A and B, proceeds via a valine-dependent pathway and that hydroxylation and dehydration precedes formation of the terminal epoxide. Sodium 3-methyl-2-oxobutenoate, formed through a transimination reaction, was shown to be the penultimate precursor incorporated into the azinomycin epoxide.

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