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(S)-2-[(S)-2-((S)-2-tert-Butoxycarbonylamino-4-difluoromethylsulfanyl-butyrylamino)-4-methyl-pentanoylamino]-3-phenyl-propionic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

201870-91-9

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201870-91-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 201870-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,8,7 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 201870-91:
(8*2)+(7*0)+(6*1)+(5*8)+(4*7)+(3*0)+(2*9)+(1*1)=109
109 % 10 = 9
So 201870-91-9 is a valid CAS Registry Number.

201870-91-9Relevant academic research and scientific papers

Synthesis of and chemotactic responses elicited by fMet-Leu-Phe analogs containing difluoro- and trifluoromethionine

Houston Jr., Michael E.,Harvath, Liana,Honek, John F.

, p. 3007 - 3012 (2007/10/03)

N-Formylmethionylleucylphenylalanine tripeptides containing either L-difluoro- or L-trifluoromethionine as replacements for methionine were synthesized by solution methods. The fluorinated peptides were found to have potent chemoattractant activities on human neutrophils. Ab initio calculations were utilized to further understand the changes in electronic properties of the methionine side chain upon fluorination.

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