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777939-36-3

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777939-36-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 777939-36-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,7,9,3 and 9 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 777939-36:
(8*7)+(7*7)+(6*7)+(5*9)+(4*3)+(3*9)+(2*3)+(1*6)=243
243 % 10 = 3
So 777939-36-3 is a valid CAS Registry Number.

777939-36-3Downstream Products

777939-36-3Relevant articles and documents

Synthesis and biological evaluation of new acinetoferrin homologues for use as iron transport probes in mycobacteria

Gardner, Richard A.,Ghobrial, George,Naser, Saleh A.,Phanstiel IV, Otto

, p. 4933 - 4940 (2007/10/03)

Four new acinetoferrin homologues were synthesized using a modular synthetic approach. Two linear and two cyclic imide derivatives were generated and evaluated for growth stimulating behavior in Mycobacterium avium subsp paratuberculosis. The yield for the tandem coupling of a functionalized aminohydroxamic acid motif (2 equiv) to a tert-butyl citrate derivative was significantly improved using DCC and N-hydroxysuccinimide. 1H NMR spectroscopy (CD3OD) provided a convenient method for monitoring the final imidization step in TFA using the doublet patterns between 2.5 and 3.06 ppm. New protocols demonstrated that only a 20% growth enhancement was observed with M. avium subsp. paratuberculosis using the imide of acinetoferrin. Last, a siderophore from Streptomyces pilosus, deferrioxamine B, was shown to cross-feed M. avium subsp. paratuberculosis with the same efficiency as the more costly, native chelator, mycobactin J.

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