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57857-70-2

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57857-70-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57857-70-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,8,5 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 57857-70:
(7*5)+(6*7)+(5*8)+(4*5)+(3*7)+(2*7)+(1*0)=172
172 % 10 = 2
So 57857-70-2 is a valid CAS Registry Number.

57857-70-2SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-methoxy-4-(4-methoxyphenyl)tellurinylbenzene

1.2 Other means of identification

Product number -
Other names 4,4'-dimethoxydiphenyl telluroxide

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:57857-70-2 SDS

57857-70-2Relevant articles and documents

Gif-type oxidation systems. Evidence for a second intermediate between saturated hydrocarbon and ketone

Barton,Csuhai,Ozbalik

, p. 2717 - 2820 (1990)

The addition of dianisyl telluride to a Gif(IV) oxidation of adamantane has a marked effect on the ratio of ketone to secondary alcohol formed. This is interpreted as an indication of a second intermediate in the conversion of saturated hydrocarbvons into ketones. This second intermediate is probably an Fe(III) alkoxide.

The highly selective metal-free oxidation of sulfides, tellurides and phosphines using sodium bromate in the presence of recyclable ionic liquid [bmim]HSO4, at 80°C

Rajeswari,Lumb, Anshika,Khurana, Jitender M.

, p. 442 - 444 (2016/07/21)

The metal-free oxidation of sulfides to sulfones using sodium bromate (NaBrO3) in [bmim]HSO4:H2O (3:1, v/v) at 80°C is reported. Phenylalkyl, phenylbenzyl, diaryl and heteroaryl sulfides were transformed to the corresponding sulfones. Aryl tellurides and phosphines were oxidised to the corresponding telluroxides and phosphine oxides. All the reactions proceeded smoothly and gave high yields in 20-55 min. The ionic liquid [bmim]HSO4 was easily recovered and recycled.

Aqueous sodium hypochlorite mediated chemoselective oxidation of chalcogenides to monoxides and dioxides by microwave exposure

Khurana, Jitender,Nand, Bhaskara

experimental part, p. 906 - 909 (2011/01/08)

A solvent-free, rapid, and highly selective oxidation of sulfides, selenides, and tellurides (chalcogenides) to the corresponding monoxides (sulfoxides, selenoxides, and telluroxides) or the corresponding dioxides (sulfones, selenones, and tellurones) has been developed using aqueous sodium hypochlorite on solid supports by exposure to microwave. Chemoselectivity and quantitative yields have been attained in most cases.

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