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(3R,4S,5S,6S)-5-(tert-Butyl-dimethyl-silanyloxy)-3-(4-methoxy-benzyloxy)-2,2,4,6,10-pentamethyl-undec-10-enal is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

212507-90-9

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212507-90-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 212507-90-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,5,0 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 212507-90:
(8*2)+(7*1)+(6*2)+(5*5)+(4*0)+(3*7)+(2*9)+(1*0)=99
99 % 10 = 9
So 212507-90-9 is a valid CAS Registry Number.

212507-90-9Relevant academic research and scientific papers

Total synthesis of (-)-epothilone B

May, Scott A.,Grieco, Paul A.

, p. 1597 - 1598 (2007/10/03)

The sixteen-membered ring macrolide (-)-epothilone B 1 has been synthesized by a route which features stereospecific methylation of an (E)-γ,δ-epoxy acrylate, the use of a double asymmetric reaction employing (R,R)-diisopropyltartrate and (E)-crotylboronate, and ring closure by means of an olefin metathesis reaction.

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