Cas 136581-54-9,N-tert-butoxycarbonyl-4-(1,1-difluoro-2-chloro-2-bromoethoxy)-L-phenylalanine

136581-54-9

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Basic information

Product Name: N-tert-butoxycarbonyl-4-(1,1-difluoro-2-chloro-2-bromoethoxy)-L-phenylalanine
Synonyms:
CAS NO:136581-54-9
Molecular Formula:
Molecular Weight: 458.684
EINECS: N/A
Product Categories: N/A
Mol File: 136581-54-9.mol
Article Data: 1

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: N-tert-butoxycarbonyl-4-(1,1-difluoro-2-chloro-2-bromoethoxy)-L-phenylalanine(CAS DataBase Reference)
NIST Chemistry Reference: N-tert-butoxycarbonyl-4-(1,1-difluoro-2-chloro-2-bromoethoxy)-L-phenylalanine(136581-54-9)
EPA Substance Registry System: N-tert-butoxycarbonyl-4-(1,1-difluoro-2-chloro-2-bromoethoxy)-L-phenylalanine(136581-54-9)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 136581-54-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 136581-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,5,8 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 136581-54:
(8*1)+(7*3)+(6*6)+(5*5)+(4*8)+(3*1)+(2*5)+(1*4)=139
139 % 10 = 9
So 136581-54-9 is a valid CAS Registry Number.

136581-54-9Upstream product

136581-54-9Downstream Products

131123-50-7 4-(1,1-difluoro-2-chloro-2-bromoethoxy)-L-phenylalanine

136581-54-9Relevant articles and documents

SYNTHESIS OF OPTICALLY ACTIVE p-POLYFLUOROALKOXY-L-PHENYLALANINES

Kolycheva, M. T.,Gerus, I. I.,Yagupolskii, Yu. L.,Galushko, S. V.,Kukhar, V. P.

, p. 670 - 675 (2007/10/02)

Unlike unsubstituted tyrosine, N-tert-butoxycarbonyl-L-tyrosine reacts with CHClF2 in the presence of a base at 70 deg C with the formation of N-substituted p-difluoromethoxy-L-phenylalanines with full retention of the configuration at the optical center.

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