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42977-21-9

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42977-21-9 Usage

Uses

Bis(1H,1H,2H,2H-perfluorodecyl)disulfide (CAS# 42977-21-9) is a dropwise condensation promoter, and a surface modifier used in triple quadrupole mass spectrometers.

Check Digit Verification of cas no

The CAS Registry Mumber 42977-21-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,7 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 42977-21:
(7*4)+(6*2)+(5*9)+(4*7)+(3*7)+(2*2)+(1*1)=139
139 % 10 = 9
So 42977-21-9 is a valid CAS Registry Number.
InChI:InChI=1/C20H8F34S2/c21-5(22,7(25,26)9(29,30)11(33,34)13(37,38)15(41,42)17(45,46)19(49,50)51)1-3-55-56-4-2-6(23,24)8(27,28)10(31,32)12(35,36)14(39,40)16(43,44)18(47,48)20(52,53)54/h1-4H2

42977-21-9SDS

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 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluoro-10-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyldisulfanyl)decane

1.2 Other means of identification

Product number -
Other names EINECS 256-031-7

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:42977-21-9 SDS

42977-21-9Relevant articles and documents

Oxidation chemistry of perfluoroalkyl-segmented thiols, disulfides, thiosulfinates and thiosulfonates: The role of the perfluoroalkyl group in searching out new chemistry

Brace, Neal O.

, p. 11 - 23 (2000)

The oxidation chemistry of perfluoroalkyl-segmented thiols, RF-R-SH (1), thiosulfinates, RF-R-S(O)S-R-RF (3), thiosulfonates, RF-R-S(O2)S-R-RF (4) and disulfides, RF-R-SS-R-RF (5) (in which RF=n-C6F13 or n-C8F17 and R=CH2CH2) is studied herein. Base catalyzed reaction of C6 thiol 1 with hydrogen peroxide gives pure disulfide 5, quantitatively. Other, less suitable methods for the oxidation of thiol 1 are also examined and compared. Selective oxidation of disulfide 5 by peroxy acids in chlorinated solvents gives excellent yields of thiosulfinate 3. Unlike their hydrocarbon analogues, which are unstable to heating or storage, the RF-segmented thiosulfinates 3 are relatively stable, crystalline compounds. Selective oxidation of 3 by sodium metaperiodate gives thiosulfonate 4 in high yield. Side reactions intervene with unfavorable conditions, or when peroxy acetic acid in acetic acid is used as oxidant,. Oxidation of 5 by hydrogen peroxide in low conversion gives 4 and two new compounds, 8 and 9. Compound 8 is n-C6F13S(O)2CH2CH2C 6F13 (probably the sulfinate ester and not the sulfone), and 9 is most likely the O,S-sulfenyl sulfinate or, possibly an isomer, the vic-disulfoxide. A free radical chain mechanism is proposed for conversion of 4 (or 9) to 8. Compounds 8 and 9 are stable in solution and are identified by MS/GC. In 3, 4 and 5, the ν CH bands correlate with NMR of CH2 at C(1) and C(2) positions, both 1H and 13C NMR. The RF-segment in these unique sulfur compounds enhances their utility and modifies their chemical and physical properties in important and interesting ways.

Exploiting Sm(ii) and Sm(iii) in SmI2-initiated reaction cascades: Application in a tag removal-cyclisation approach to spirooxindole scaffolds

Coote, Susannah C.,Quenum, Seidjolo,Procter, David J.

supporting information; experimental part, p. 5104 - 5108 (2011/08/07)

A tag removal-cyclisation sequence is described that is initiated by reduction using a Sm(ii) species and completed by a Sm(iii) Lewis acid that is formed in an earlier stage. Therefore, the reaction cascade utilises both oxidation states of a samarium reagent in discrete steps and allows access to privileged, pyrrolidinyl-spirooxindole scaffolds and analogues inspired by the anti-cancer natural product spirotryprostatin A. The Royal Society of Chemistry 2011.

Phase transfer synthesis of symmetrical di-terminally perfluorinated alkyl trithiocarbonates

Naud,Calas,Blancou,Commeyras

, p. 29 - 38 (2007/10/03)

Symmetrical di-terminally perfluorinated alkyl trithiocarbonates having the formula [F(CF2)n(CH2)mS]2CS (n = 4,6,8 m = 2 and n = 6,8 m = 11) were prepared in good yield under phase-transfer catalytic conditions starting from perfluoroalkyl alkyl iodides F(CF2)n(CH2)mI.

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