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Methyl (2E,4Z,6S,7R,8E,10S,11R,12S,14S,15R)-7-(tert-Butyldimethylsiloxy)-15-(2,5-dimethoxy-3-nitrophenyl)-11,12,15-trimethoxy-2,6,8,10,14-pentamethyl-2,4,8-pentadecatrienoate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138694-28-7

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138694-28-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138694-28-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,9 and 4 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 138694-28:
(8*1)+(7*3)+(6*8)+(5*6)+(4*9)+(3*4)+(2*2)+(1*8)=167
167 % 10 = 7
So 138694-28-7 is a valid CAS Registry Number.

138694-28-7Upstream product

138694-28-7Relevant academic research and scientific papers

An improved synthesis of the (E,Z)-dienoate precursor of (+)-damavaricin D via a vinylogous Horner-Wadsworth-Emmons reaction

Chemler, Sherry R.,Coffey, D. Scott,Roush, William R.

, p. 1269 - 1272 (2007/10/03)

An improved synthesis of the C(1)-C(5) (E,Z)-dienoate segment of (+)- damavaricin D precursor 3 was accomplished using the unsaturated phosphonate reagent 9 in a (Z)-selective vinylogous Horner-Wadsworth-Emmons reaction.

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