Silicone Fluids & Oils Available to Source

Trisiloxane

CAS 18736-03-3 · MF H8O2Si3 · MW 124.32 g/mol

Trisiloxane (CAS 18736-03-3) is the unsubstituted parent trisiloxane compound with the formula H8O2Si3. Not to be confused with octamethyltrisiloxane (MDM, CAS 107-51-7) which is the fully methylated industrial silicone fluid.

SDS / TDS Download
CAS Number
18736-03-3
Molecular Formula
H8O2Si3
Molecular Weight
124.32 g/mol
Material Family
Silicone Fluids & Oils
GHS / SDS Safety Danger
Irritant Corrosive
  • H318 (100%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H332 (100%): Harmful if inhaled [Warning Acute toxicity, inhalation]
Chemical Identity
CAS Number18736-03-3
IUPAC Namedisilyloxysilane
InChI KeyZQTYRTSKQFQYPQ-UHFFFAOYSA-N
PubChem CID 23657856
INCI NameTRISILOXANE
Synonyms & Trade Names
Silanetriol triethyl- triethylsilanol or TES FRD 20 KF 96A1 OS 20 (SILOXANE) Trisiloxane VOLASIL DM-1 disilyloxysilane Pentanetrisiloxane Q27121055
Full Description

Trisiloxane (CAS 18736-03-3) is the unsubstituted parent trisiloxane compound with the formula H8O2Si3. Not to be confused with octamethyltrisiloxane (MDM, CAS 107-51-7) which is the fully methylated industrial silicone fluid.