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17995-44-7

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17995-44-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17995-44-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,9 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 17995-44:
(7*1)+(6*7)+(5*9)+(4*9)+(3*5)+(2*4)+(1*4)=157
157 % 10 = 7
So 17995-44-7 is a valid CAS Registry Number.

17995-44-7Downstream Products

17995-44-7Relevant articles and documents

Unexpected reactions of dichloro(ethyl)silane with DMSO in organic solvents

Basenko,Maylyan

, p. 903 - 907 (2017/09/29)

The effect of the solvent nature on the composition of the products formed upon the reaction between EtSi(H)Cl2 and DMSO (molar ratio 1: 1, 0 °C) was revealed. This reaction in non-polar and low polar solvents (toluene, chloroform) gives oligoethyl(hydro)cyclo-siloxanes ((EtSi(H)O)n, n = 3—8) as the major products in the yields up to 77%. In MeCN, oligoethyl(hydro)cyclosiloxanes are formed along with cyclic monochlorinated siloxanes ((EtSi(H)O)n(EtSi(Cl)O), n = 2—7) in a ratio of ~7: 3 (68: 29 wt.%). In excess diethyl ether, the overall yield of oligoethyl(hydro)cyclosiloxanes does not exceed 25% and the major products are linear α,ω-diethoxyoligoethyl(hydro)siloxanes (EtO(EtSi(H)O)nEt, n = 2—7) formed in 70—75% yields. A plausible reaction mechanism leading to the final products was suggested. Apparently, the reaction proceeds via ethyl(hydro)-and chloro(ethyl)silanones as intermediates.

EFFECT OF HYDROCHLORIC ACID ON RING FORMATION IN HYDROLYTIC POLYCONDENSATION OF DIFUNCTIONAL ORGANOCHLOROSILANES

Kopylov, V. M.,Agashkov, S. P.,Sunkovich, G. V.,Prikhod'ko, P. L.,Ezerets, M. A.,Glukhova, M. A.

, p. 1873 - 1878 (2007/10/02)

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