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Docosamethyldecasiloxane is a complex cyclic siloxane compound, characterized by its molecular formula C22H44O10Si10. It is composed of a decasiloxane ring, which is a cyclic structure containing ten silicon atoms, each bonded to three oxygen atoms, and two methyl groups attached to each silicon atom. DOCOSAMETHYLDECASILOXANE is known for its high thermal stability, low toxicity, and excellent electrical insulating properties. It is commonly used in the manufacturing of high-performance silicone-based materials, such as lubricants, sealants, and elastomers, due to its ability to withstand extreme temperatures and maintain its properties over a wide range of conditions.

556-70-7

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556-70-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 556-70-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,5 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 556-70:
(5*5)+(4*5)+(3*6)+(2*7)+(1*0)=77
77 % 10 = 7
So 556-70-7 is a valid CAS Registry Number.
InChI:InChI=1/C22H66O9Si10/c1-32(2,3)23-34(7,8)25-36(11,12)27-38(15,16)29-40(19,20)31-41(21,22)30-39(17,18)28-37(13,14)26-35(9,10)24-33(4,5)6/h1-22H3

556-70-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name docosamethyl-Decasiloxane

1.2 Other means of identification

Product number -
Other names Decasiloxane, docosamethyl-

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:556-70-7 SDS

556-70-7Downstream Products

556-70-7Relevant academic research and scientific papers

Kinetics of the condensation of oligosiloxanes containing acetoxyl and hydroxyl end groups catalyzed by uncharged nucleophiles in an acid-base inert solvent

Cypryk, M.,Rubinsztajn, S.,Chojnowski, J.

, p. 197 - 204 (2007/10/02)

Condensation of undecamethylpentasiloxane-1-ol (1) with 1-acetoxypentamethyldisiloxane (2) in methylene chloride in the presence of uncharged bases has been studied as a model for the coupling of acetoxyl and hydroxyl ended polydimethylsiloxane chains.Triethylamine acts not only as the acceptor of the acid released in the process but also as a Broensted base catalyst activating silanol group.However, weakly basic but strongly nucleophilic N-heterocycles such as 4-dimethylaminopyridine are more effective catalysts promoting the condensation by acting as nucleophiles to activate the acetoxysilane.

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