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205584-90-3

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205584-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 205584-90-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,5,8 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 205584-90:
(8*2)+(7*0)+(6*5)+(5*5)+(4*8)+(3*4)+(2*9)+(1*0)=133
133 % 10 = 3
So 205584-90-3 is a valid CAS Registry Number.

205584-90-3Downstream Products

205584-90-3Relevant articles and documents

Delineating noncovalent interactions between the azinomycins and double-stranded DNA: Importance of the naphthalene substitution pattern on interstrand cross-linking efficiency

Landreau, Cyrille A. S.,LePla, Rachel C.,Shipman, Michael,Slawin, Alexandra M. Z.,Hartley, John A.

, p. 3505 - 3507 (2007/10/03)

(Chemical Equation Presented) Using a series of synthetic azinomycin analogues, it is shown that the efficiency of in vitro DNA interstrand cross-linking is markedly reduced when either the C-5′ methyl group or both the C-5′ methyl and C-3′ methoxy groups

Asymmetric synthesis of the left hand portion of the azinomycins

Bryant, Helen J.,Dardonville, Christophe Y.,Hodgkinson, Timothy J.,Hursthouse, Michael B.,Malik, K. M. Abdul,Shipman, Michael

, p. 1249 - 1255 (2007/10/03)

A nine step synthesis of the left hand portion of the azinomycins is described starting from 3,3-dimethyl-acrylic acid. The approach relies on a Sharpless asymmetric dihydroxylation (AD) reaction to install the requisite (2S,3S)-stereochemistry of epoxy alcohol 4. This epoxide is converted to crystalline amide derivative 12 whose structure and absolute stereochemistry have been unambiguously established using X-ray crystallography. Coupling of epoxy alcohol (2S,3S)-4 with naphthoyl chloride 16 and subsequent manipulations furnish epoxy amide (2S,3S)-1 identical in all respects with the natural material.

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