25359-71-1 Usage
Uses
DIPENTAERYTHRITOL HEXAKIS (3-MERCAPTOPROPIONATE) can be used as organic synthesis intermediate and pharmaceutical intermediate, mainly used in laboratory research and development process and pharmaceutical and chemical production process.
Synthesis
(1) Adjustment of mixed solution (a2)~(a5) According to the following formulation, mixed solution (a2)~(a5) was prepared. Mixed solution (a2) (i) AEEp-1 76 parts by weight, (ii) MTBD 24 parts by weight, (iii) methyl isobutyl ketone (MIBK) 100 parts by weight, (iv) irgacure 907 4 parts.Mixed solution (a3) (i) AEEp-1 79 parts by weight, (ii) PEMP 21 parts by weight, (iii) MIBK 100 parts by weight, (iv) irgacure 907 4 parts by weight.Mixed solution (a4) (i) AEEp-1 78 parts by weight, (ii) DPMP 22 parts by weight, (iii) MIBK 100 parts by weight, (iv) Irgacure 907 4 parts by weight. Mixed solution (a5) (i) AEEp-1 68 parts by weight,(ii) QE340 32 parts by weight, (iii) MIBK 100 parts by weight, (iv) Irgacure 907 4 parts by weight.(2) Reaction of mixed solution (a2)~(a5), fluorine content, refractive index, compatibility and IR absorption measurement In a glass sample bottle each 5 ml, each mixed solution (a2)~(a5) 1 g was charged. The ultraviolet rays of intensity 5000 mJ/cm2U were irradiated with each mixture by using a high pressure mercury lamp from the top of the sample bottle without lid. Then, air dried at room temperature, MIBK was removed.
Check Digit Verification of cas no
The CAS Registry Mumber 25359-71-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,3,5 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 25359-71:
(7*2)+(6*5)+(5*3)+(4*5)+(3*9)+(2*7)+(1*1)=121
121 % 10 = 1
So 25359-71-1 is a valid CAS Registry Number.
InChI:InChI=1/C28H46O13S6/c29-21(1-7-42)36-15-27(16-37-22(30)2-8-43,17-38-23(31)3-9-44)13-35-14-28(18-39-24(32)4-10-45,19-40-25(33)5-11-46)20-41-26(34)6-12-47/h42-47H,1-20H2
25359-71-1Relevant articles and documents
Preparing method for multi-mercapto carboxylic ester
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Paragraph 0075; 0076, (2017/02/17)
The invention provides a preparing method for multi-mercapto carboxylic ester. The preparing method comprises the steps that mercapto carboxylic acid and polyhydric alcohol react under the conditions that the pressure intensity is smaller than or equal to -0.07 MPa and the temperature ranges from 80 DEG C to 100 DEG C, and multi-mercapto carboxylic ester is obtained. According to the preparing method, the esterification reaction of mercapto carboxylic acid and polyhydric alcohol is carried out under the conditions of the high temperature and negative pressure, and a water-carrying agent is not needed, so that a series of problems brought by the water-carrying agent are solved, the loss of the water-carrying agent is avoided, the reaction speed is increased, and meanwhile the product quality is improved.
Multiarm organic compounds for use as reversible chain-transfer agents in living radical polymerizations
Mayadunne, Roshan T.A,Moad, Graeme,Rizzardo, Ezio
, p. 6811 - 6814 (2007/10/03)
Generic approaches to the synthesis of multi-thiocarbonyl thio compounds are described. A multi-hydroxy core was condensed with either α-bromophenyl acetic acid or 2-mercaptopropanoic acid in the presence of p-toluenesulfonic acid catalyst to afford the corresponding esters in quantitative yield. Treatment of the bromo esters with sodium methyl trithiocarbonate or the thiols with carbon disulfide, benzyl bromide and triethylamine then affords two series of trithiocarbonates. The process is exemplified by application to mono, di- or tri-pentaerythritol. These multi-thiocarbonyl thio compounds have application as chain-transfer agents in reversible addition fragmentation chain-transfer (RAFT) polymerization as precursors to star polymers.