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175204-91-8

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175204-91-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 175204-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,5,2,0 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 175204-91:
(8*1)+(7*7)+(6*5)+(5*2)+(4*0)+(3*4)+(2*9)+(1*1)=128
128 % 10 = 8
So 175204-91-8 is a valid CAS Registry Number.
InChI:InChI=1/C13H10Br2O3/c1-17-12-10(13(16)18-2)6-7-5-8(14)3-4-9(7)11(12)15/h3-6H,1-2H3

175204-91-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name methyl 4,7-dibromo-3-methoxynaphthalene-2-carboxylate

1.2 Other means of identification

Product number -
Other names HMS1530O13

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:175204-91-8 SDS

175204-91-8Relevant articles and documents

Design, synthesis and biological evaluation of novel triaryldimethylaminobutan-2-ol derivatives against Mycobacterium tuberculosis

Cao, Ruiyuan,Fan, Shiyong,Li, Song,Liu, Ping,Lu, Yu,Wang, Bin,Wang, Xiaokui,Zhong, Wu

, (2020/07/13)

Bedaquiline (TMC207), a typical diarylquinoline anti-tuberculosis drug, has been approved by FDA to specifically treat MDR-TB. Herein we describe design, synthesis, and in vitro biological evaluation against Mycobacterium tuberculosis of a series of triaryldimethylaminobutan-2-ol derivatives obtaining from the structural modification of TMC207. Compounds 23, 25, 28, 32, 39 and 43 provided superior anti-mycobacterial activity than positive control PC01 which shows the same configuration and contains TMC207. Compounds 16, 20, 29, 34, 37, 45 and 47 exhibited the similar activity to positive control PC01. Most importantly, the series of compounds showed excellent activity against XDR-Mtb. The result of acute toxicity suggested that this class of triaryldimethylaminobutan-2-ol derivatives should be graded as low. Further SAR analysis indicates that a large steric bulk of triaryl and 7-Br, 3-OCH3 on 1-naphthyl are critical.

Selective arylation, alkenylation, and cyclization of dibromonaphthols, using visible light, via carbene intermediates

Verga, Daniela,Doria, Filippo,Mella, Mariella,Freccero, Mauro

experimental part, p. 5311 - 5319 (2009/11/30)

(Chemical Equation Presented) The photoreactivity of several 3-substituted-1,6-dibromo-2-naphthols has been investigated in neat acetonitrile in the presence of diluted Et3N and in aqueous buffered acetonitrile (pH 8, phosphate buffered), using visible light (450 nm). Hydrobromic acid loss in the presence of the base, for the unsubstituted naphthol, or heterolytic C-Br cleavage directly from the naphtholates, for the more acid 3-substutited naphthols (R = COOCH3, CONH2, CONMe2), generates electrophilic carbene intermediates, which have been successfully trapped by molecular oxygen, pyrrole, acrylonitrile, ethyl vinyl ether, and allyltrimethylsilane. Product distribution analysis reveals three types of products arising from (i) arylation, (ii) alkenylation, and (iii) cyclization reactions. The generation and the reactivity of α-ketocarbene intermediates, as electrophilc diradicals, has been supported by laser flash photolysis, with the detection of both the carbene (λmax 510 nm) and 1,2-naphthoquinone-O-oxide (R = CONMe2, λ max 600 nm) in the presence of O2.

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