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Decamethylcyclopentasiloxane RJ-D5

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Chemical Name: Decamethylcyclopentasiloxane, D5 Siloxane, D5 Silicone

CAS No.:541-02-6

Structural formula: [(CH3)2SiO]5

Molecular weigh: 370.7

Chemical Structure:

Chemical Structure of D5.png

Decamethylcyclopentasiloxane RJ-D5 is cyclopentasiloxane. The product is nontoxic, odorless, colorless, tasteless. The product has high compatibility with lots of cosmetic ingredients, with the benefits of bright, smooth, non-grease. for personal care products including antiperspirants, skin, sun care, hair conditioners, color cosmetics and particle/pigment treatment.It provides improved efficacy in antiperspirants, wet combing in hair conditioners. 

Technical Index

AppearanceColorless transparent fluid
Purity, %Min 99.0
Specific gravity (25°C)0.940-0.960
Refractive index (25°C)1.3850-1.4050
Viscosity (CS, 25°C) 2-6


Decamethylcyclopentasiloxane RJ-D5 can be used in personal care products including antiperspirants, skin, sun care, hair conditioners, color cosmetics and particle/pigment treatment. etc.


D5 Siloxane is available in 190Kg Iron drums, 950kg IBC drums, or other packing on request.

Storage & Transport

Transport as non-hazardous chemicals, keeping away from rain and sunlight.

Shelf life

Original characteristics remain intact for 1 years, if kept in recommended storage.