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139040-87-2

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139040-87-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139040-87-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,0,4 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 139040-87:
(8*1)+(7*3)+(6*9)+(5*0)+(4*4)+(3*0)+(2*8)+(1*7)=122
122 % 10 = 2
So 139040-87-2 is a valid CAS Registry Number.

139040-87-2SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-Hydroxy-N,N-dimethylpropanethioamide

1.2 Other means of identification

Product number -
Other names 2-Piperazinepropanol,1,4-dimethyl

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:139040-87-2 SDS

139040-87-2Downstream Products

139040-87-2Relevant articles and documents

Solvolytic Elimination Reactions of Tertiary α-CSNMe2-Substitutedd Systems

Creary, Xavier,Hatoum, Holia N.,Barton, Angela,Aldridge, Timothy E.

, p. 1887 - 1897 (2007/10/02)

The tertiary benzylic α-CSNMe2-substituted p-nitrobenzoates and trifluoroacetates of general structure Ar(CH3)C(CSNMe2)(OCOR), 7 and 8, solvolyze to give exclusively elimination products H2C=C(CSNMe2)Ar.A Hammett study gave a nonlinear correlation.Variation in rate with solvent ionizing power was small for the unsubstituted trifluoroacetate derivative of 8, and the β-CD3 isotope effect on rate was negligible.There is, however, a large isotope effect (2.5-2.8) in formation of the elimination product when Ph(CH2D)C(CSNMe2)(OCOCF3) solvolyzes.It is concluded that an intermediate must be involved sine the product-determining step and the rate-determining step have differing isotope effects.The likely intermediate is an α-CSNMe2-substituted cation as an ion pair), despite the fact that the reaction has few characteristics of a typical E1 reaction.Tertiary noorbornyl, cyclohexyl, and 2-propyl α-CSNMe2-substituted systems also react to give exclusively elimination products at rates far in excess of α-CONMe2 analogues.It is suggested that α-CSNMe2 cations are also intermediates and that these cations undergo proton loss at an early ion pair stage.These cations are proposed to derive substitantial stabilization by charge delocalization onto sulfur of the thiocarbonyl group. By way of contrast, the secondary system CH3CH(CSNMe2)(OCOCF3), 25, solvolyzes to give mainly a rearranged product CH3CH(CONMe2)(SCOCH3) via a KΔ mechanism involving neighboring thiocarbonyl participation leading to a cyclized ion.

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