4459-30-7

Basic information

• Product Name: 1,1,3,5,5-pentamethyltrisiloxane
• Synonyms: 1,1,3,5,5-Pentamethyltrisiloxane; trisiloxane, 1,1,3,5,5-pentamethyl-
• CAS NO: 4459-30-7
• Molecular Formula: C₅H₁₈O₂Si₃
• Molecular Weight: 194.4517
• Mol File: 4459-30-7.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 127.517°C at 760 mmHg
• Flash Point: 30.922°C
• Vapor Pressure: 13.484mmHg at 25°C
• CAS DataBase Reference: 1,1,3,5,5-pentamethyltrisiloxane(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,3,5,5-pentamethyltrisiloxane(4459-30-7)
• EPA Substance Registry System: 1,1,3,5,5-pentamethyltrisiloxane(4459-30-7)

Safety Data

• Hazardous Substances Data: 4459-30-7(Hazardous Substances Data)

Upstream product

• 16538-65-1 dichloromethyl[(trimethylsilyl)methyl]silane 
• 1560-28-7 pentamethylchlorodisilane 
• 4342-61-4 1,2-dichlorotetramethylsilane 
• 2943-62-6 1-chloro-1,1,3,3,3-pentamethyldisiloxane 
• 75-54-7 Dichloromethylsilane 
• 1066-35-9 dimethylmonochlorosilane 

Relevant articles and documents

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An organosilicon endcapper having one silicon-bonded hydrogen atom

An organosilicon compound having one silicon-bonded hydrogen atom described by formula or by formula where each R1 and R1'is an independently selected hydrocarbon radical free from aliphatic unsaturation having 1 to 18 carbon atoms; each R2 is an independently selected hydrocarbon radical free from aliphatic unsaturation having 1 to 18 carbon atoms; each X and X' is independently selected from halogen, alkoxy, acyloxy or ketoximo; t is 2 or 3; n is 0, 1 or 2; and each Z is independently selected from divalent hydrocarbon radicals free of aliphatic unsaturation having 2 to 18 carbon atoms or a combination of divalent hydrocarbon radicals and siloxane segments. The organosilicon compounds of the present invention are useful as endcappers for polymers.