A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Decamethyltetrasiloxane (MD2M) is a linear tetrasiloxane with a viscosity of approximately 2 cSt at 25°C. It is used as an intermediate in silicone polymer production and as a low-viscosity carrier fluid in industrial formulations.
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 205-491-7
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Regulatory restriction status
Decamethyltetrasiloxane (MD2M) (CAS 141-62-8) appears on the regulatory list(s) below. This is public regulatory information about the substance — not a statement about any specific supplier’s material, and not a safety claim. Confirm the current status for your jurisdiction and intended use.
- REACH SVHC Candidate List (EU): listed 25 Jun 2025 on the basis of vPvB (Art. 57(e)). SVHC status triggers EU supplier-communication and notification duties above 0.1% w/w; it is not, by itself, a ban on sale.
Sources: ECHA Candidate List / Annex XIV / Annex XVII (echa.europa.eu); U.S. EPA TSCA; UN Stockholm Convention / EU POPs Regulation; California OEHHA Proposition 65 list. Retrieved 2026-07-13.
Solutions Using This Product
Process-solution guides on this site that specify this chemistry:
- Mold Release Agents for Injection & Compression Molding (Plastics & Polymers)
- Mold Release & Anti-Stick Agents (Industrial Manufacturing)
Frequently Asked Questions
What is Decamethyltetrasiloxane used for?
Decamethyltetrasiloxane (CAS 141-62-8) is a low-viscosity linear silicone fluid used as a volatile carrier and emollient in personal-care formulations and as a heat-transfer and dielectric fluid in industrial applications. It is also used as a low-surface-tension solvent and spreading agent in silicone systems.
What is another name for Decamethyltetrasiloxane?
Decamethyltetrasiloxane is also referred to as MD2M (its silicone shorthand) and as silicone fluid L4. The formula is C10H30O3Si4.
What is the INCI name for Decamethyltetrasiloxane?
In personal-care labeling it appears under its silicone fluid designation; confirm the exact INCI nomenclature and grade against the product technical data sheet before use in a cosmetic formulation. RawSource supplies it within the Silicone Fluids & Oils family.
How is Decamethyltetrasiloxane supplied in bulk?
RawSource supplies Decamethyltetrasiloxane as a low-viscosity silicone fluid in bulk packaging such as drums and totes. Request a current CoA and SDS to confirm grade, viscosity, and specifications.
What is the cost of bulk Decamethyltetrasiloxane?
Bulk pricing depends on grade, volume, and packaging. Request a current bulk quote from RawSource with your target volume and packaging for accurate pricing.
What is the REACH and TSCA regulatory status of Decamethyltetrasiloxane (MD2M)?
Decamethyltetrasiloxane (MD2M) (CAS 141-62-8) is subject to U.S. TSCA Inventory requirements; supplying it into the EU requires valid REACH registration ((EC) No 1907/2006). RawSource cannot verify a third-party supplier's registrations — buyers should require documented TSCA and REACH compliance for their jurisdiction and volume (EC 205-491-7).