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ChemicalBook >> CAS DataBase List >>1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane

1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane

1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane Structure
1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane structure
CAS No.
546-45-2
Chemical Name:
1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane
Synonyms
Cyclotrisiloxane, 2,4,6-trimethyl-2,4,6-triphenyl-;Methylphenylcyclosiloxanes;2,4,6-Trimethyl-2,4,6-triphenyl-1,3,5,2,4,6-trioxatrisilinane;LS 8490;Methyl phenyl ring;Mixedcis-/trans-isomeres;PHENYLMETHYLCYCLOSILOXANES;TRIPHENYLTRIMETHYLCYCLOTRISILOXANE;Phenylmethylsiloxane cyclic trimer;Trimethyltriphenylcyclotrisiloxane
CBNumber:
CB7767751
Molecular Formula:
C21H24O3Si3
Molecular Weight:
408.67
MDL Number:
MFCD00053565
MOL File:
546-45-2.mol
MSDS File:
SDS
Last updated:2026-09-12 18:55:06
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1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane Properties

Melting point 100°C
Boiling point 160-90°C 5mm
Density 1.102 g/mL at 20 °C(lit.)
refractive index 1.545
Flash point >200°C
storage temp. Sealed in dry,Room Temperature
form solid
Specific Gravity 1.1
Hydrolytic Sensitivity 1: no significant reaction with aqueous systems
BRN 2954104
InChI InChI=1S/C21H24O3Si3/c1-25(19-13-7-4-8-14-19)22-26(2,20-15-9-5-10-16-20)24-27(3,23-25)21-17-11-6-12-18-21/h4-18H,1-3H3
InChIKey HAURRGANAANPSQ-UHFFFAOYSA-N
SMILES [Si]1(C)(O[Si](O[Si](C)(C2C=CC=CC=2)O1)(C)C1C=CC=CC=1)C1=CC=CC=C1
EPA Substance Registry System Cyclotrisiloxane, 2,4,6-trimethyl-2,4,6-triphenyl- (546-45-2)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P301+P312-P302+P352-P304+P340-P305+P351+P338
Risk Statements  20/21/22
Safety Statements  24/25-36/37/39
WGK Germany  3
TSCA  TSCA listed
HS Code  29319090

1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane price More Price(18)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
AK Scientific Z2247 Phenylmethylcyclosiloxanes 546-45-2 1g $32 2026-06-04 Buy
AK Scientific Z2247 Phenylmethylcyclosiloxanes 546-45-2 5g $89 2026-06-04 Buy
AK Scientific Z2247 Phenylmethylcyclosiloxanes 546-45-2 10g $166 2026-06-04 Buy
AK Scientific Z2247 Phenylmethylcyclosiloxanes 546-45-2 25g $298 2026-06-04 Buy
AK Scientific Z2247 Phenylmethylcyclosiloxanes 546-45-2 100g $894 2026-06-04 Buy
Product number Packaging Price Buy
Z2247 1g $32 Buy
Z2247 5g $89 Buy
Z2247 10g $166 Buy
Z2247 25g $298 Buy
Z2247 100g $894 Buy

1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane Chemical Properties, Uses, Production

Chemical Properties

Colorless to white solid

Definition

ChEBI: Cis-2,4,6-Trimethyl-2,4,6-triphenylcyclotrisiloxane is an organosilicon compound.

Synthesis

A method of preparing a synthetic 2,4,6-trimethyl-2,4,6-triphenylcyclotrisiloxane, comprising the steps as follows:

(1) adding methylphenyl dianisoxysilane and pure water at a mass ratio of I:0. I~I to a reaction vessel for hydrolysis reaction, hydrolysis temperature of 60C~200C, stirring, and constantly evaporating the mixture of methanol and water produced by the reaction. When the density of the evaporated liquid reaches 0.9~lg/ml, stop evaporation, reflux 0.5~4h, and separate out the lower oil phase hydrolysate;

(2) Move the oil phase hydrolysate obtained in step (I) into the reactor for dewatering under reduced pressure, and dewatering of low-boiling materials, with the pressure ranging from -0.05MPa to -0.098MPa, and the temperature ranging from 80C to 200C, and the time from 0.5h to 8h ;

(3) Add the oil phase hydrolysate into the reaction vessel for hydrolysis reaction at the temperature of 60C~200C, stirring, and continuously evaporating the mixture of methanol and water produced by the reaction. 0.5h~8h;

(3) After dehydration and stripping out the low-boiling material, continue to raise the temperature, and distill the methyl phenyl cyclosiloxane under reduced pressure, with the temperature range of 200C~400C, and the pressure range of -0.098MPa~-0.0999MPa, and collect the methyl phenyl cyclosiloxane fraction.

1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane Preparation Products And Raw materials

Raw materials

Dimethoxymethylphenylsilane Formic acid Lithium hydroxide Sulfuric acid

Preparation Products

1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane Suppliers

Global Suppliers ( 147)
Supplier Tel Email Country ProdList Advantage
Wuhan woxuan Technology Co., Ltd 13322067656 3199863540@qq.com China 3905 58
Hubei Yunmei Technology Co., Ltd 59206672 18327059871 service@yunmeichem.com China 4917 58
Hainan Chenghe Pharmaceutical Technology Co., Ltd 17263657319 3890718088@qq.com China 494 58
hangzhou chemwell chemical 0571-87824856 13676885136 silane@163.com China 118 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Beijing HwrkChemical Technology Co., Ltd 89508211 18501085097 sales.bj@hwrkchemical.com China 9407 55
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
XiaoGan ShenYuan ChemPharm co,ltd 15527621225; 15527621225 1791901229@qq.com China 6744 52
Sichuan Kulinan Technology Co., Ltd 400-1166-196 18981987031 cdhxsj@163.com China 11674 57
Supplier Advantage
Wuhan woxuan Technology Co., Ltd 58
Hubei Yunmei Technology Co., Ltd 58
Hainan Chenghe Pharmaceutical Technology Co., Ltd 58
hangzhou chemwell chemical 58
J & K SCIENTIFIC LTD. 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 62
Beijing HwrkChemical Technology Co., Ltd 55
Shanghai Hanhong Scientific Co.,Ltd. 64
XiaoGan ShenYuan ChemPharm co,ltd 52
Sichuan Kulinan Technology Co., Ltd 57

View Latest Price from 1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
sym-Trimethyltriphenylcyclo trisiloxane pictures 2026-08-25 sym-Trimethyltriphenylcyclo trisiloxane
546-45-2
 $2.20-8.80 1kg 99% 100kg ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
1,3,5-TRIMETHYL-1,3,5-TRIPHENYLCYCLOTRISILOXANE pictures 2025-04-04 1,3,5-TRIMETHYL-1,3,5-TRIPHENYLCYCLOTRISILOXANE
546-45-2
 1KG 98% 1ton Henan Aochuang Chemical Co.,Ltd.
1,3,5-trimethyl-1,3,5-triphenylcyclotrisiloxane pictures 2019-12-29 1,3,5-trimethyl-1,3,5-triphenylcyclotrisiloxane
546-45-2
 $1.00 1g Min98% HPLC Career Henan Chemical Co

546-45-2 (1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane) Related Search:

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2,4,6-trimethyl-2,4,6-triphenyl-cyclotrisiloxan PHENYLMETHYLCYCLOSILOXANES TRIPHENYLTRIMETHYLCYCLOTRISILOXANE 2,4,6-TRIMETHYL-2,4,6-TRIPHENYLCYCLOTRISILOXANE 1,3,5-TRIMETHYL-1,3,5-TRIPHENYLCYCLOTRISILOXANE, MIXED CIS,TRANS ISOMERS Triphenyltrimethylcyclotrisiloxanemixedcistransisomers 2,4,6-TRIMETHYL-2,4,6-TRIPHENYLCYCLO TRIPHENYLTRIMETHYLCYCLOTRISILOXANE: 90% MIXED CIS/TRANS ISOMERS Mixedcis-/trans-isomeres PHENYLMETHYLCYCLOSILOXANES , CONTAINS TETRASILOXANES AND TRISILOXANES 2,4,6-Trimethyl-2,4,6-triphenyl 1,3,5-trioxa-2,4,6-trisilacyclohexane 2,4,6-Trimethyl-2,4,6-triphenyl-1,3,5-trioxa-2,4,6-trisilacyclohexane 2,4,6-Trimethyl-2,4,6-triphenylcyclohexanetrisiloxane 2,4,6-Triphenyl-2,4,6-trimethylcyclohexanetrisiloxane LS 8490 Phenylmethylsiloxane cyclic trimer Trimethyltriphenylcyclotrisiloxane 1,3,5-TRIPHENYLTRIMETHYLCYCLOTRISILOXANE, 90% 2,4,6-Trimethyl-2,4,6-triphenyl-1,3,5,2,4,6-trioxatrisilinane(mixture of tetramer) 1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane (Cis & Trans Isomers Mixture) sym-Trimethyltriphenylcyclo trisiloxane 1,3,5-Trimethyl-1,3,5-Triphenylcyclotrisiloxane, Mixture Of Cis And Trans Isomers Methyl phenyl ring 1,3,5-TRIMETHYL-1,3,5-TRIPHENYLCYCLOTRISILOXANE,2,4,6,8-tetramethyl-2,4,6,8-tetraphenylcyclotetrasiloxane,SILASTIC 3110 RTV LOW VISCOSITY MOULD MAKING AND ENCAPSULATING RUBBER,2-Amino-6-chloro-4-pyrimidinol,Dimethicone 1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane, mixture of cis and trans isomers, tech. 1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane, mixture of isomers of cis and trans Methylphenylsiloxane cyclic mixture 2,4,6-Trimethyl-2,4,6-triphenyl-1,3,5,2,4,6-trioxatrisilinane Cyclotrisiloxane, 2,4,6-trimethyl-2,4,6-triphenyl- Methylphenylcyclosiloxanes 1,3,5-Triphenyltrimethylcyclotrisiloxane 1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane 546-45-2 C21H24O3Si3 C21H24O3Si3C28H32O4Si4 C21H24O3Si3C35H40O5Si5 Siloxanes Organosilicon Organometallic Reagents Chemical Synthesis Organometallic Reagents Organosilicon Siloxanes