Dimethyl carbonate
Dimethyl carbonate(DMC)


Octamethylcyclotetrasiloxane paramete

CAS No.: 556-67-2
MF: C8H24O4Si4
Place of Origin: Shandong, China
Purity: 99%
Model Number: 556-67-2
Appearance: liquid, liquid
cas: 556-67-2
MOQ: 1kg
Storage: Cool Dry Place
brand: crovell
Other Names: Octamethylcyclotetrasiloxane
EINECS No.: 209-136-7
Type: Pharmaceutical Intermediates
Brand Name: crovell
Application: for industry
name: Octamethylcyclotetrasiloxane
assay: 99% min
Packing: as requirement
Shelf Life: 2 Years
Test Method: HPLC


Chroma/platinum-cobalt chroma No./Hazen /% ≤10
Refractive index nD20 1.3960-1.3970
Density (20℃, g/cm3) 0.950-0.970
Mass Fraction of Octamethylcyclotetrasiloxane /% ≥99.0
Chloride(count by Cl-)/% ≤0.0005
Viscosity(25℃, mm2/s) 2.10-2.50
Water content/% ≤0.1
PH Value 7
Lower Limit of Explosion [%(V/V)]: 0.4


1.Octamethylcyclotetrasiloxane is an intermediate of silicone oil and silicone rubber.

2.Octamethylcyclotetrasiloxane can be used as a raw material for organic silicon and also used in the electronics industry.

3.Octamethylcyclotetrasiloxane can be used to manufacture high-tear silicone rubber products, but also used to synthesize other polymer compounds.

4. Octamethylcyclotetrasiloxane can be used as an intermediate for the preparation of silicone oil, but also for the insulation and moisture resistance of radio parts.

Product service

1. Certificate Of Analysis (COA)

2. Material Safety Data Sheet (MSDS)

3. Route of synthesis (ROS)

4. Method of Aanlysis (MOA)

5. Nuclear Magnetic Resonance (NMR)

6. Packing pictures and loading video before loading

7. Free Sample

8. Factory audit


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*Product has any problem can return.


• Q1: Can I get some samples?
A:   Yes, we can supply the free sample, but the shipping cost be paid by customers.
Q2:  How to start orders or make payments?
A :  PI will be sent first after confirmation of order,enclosed our bank information.Payment  by  T/T, Western Union LC,Alibaba trade assurance ,Moneygram.
Q3: What’s your MOQ?
A :  Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q4: How about delivery leadtime?
A :  Delivery lead time: About 3-5 days after payment confirmed.(Chinese holiday not included)
 Q5: Is there a discount?
A :  Different quantity has different discount.
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Q7: How to confirm the Product Quality before placing orders?
A :  You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.


1. Preferentially DHL or FedEx for quantity less than 50KG; Air shipping for 100KG above; Sea shipping for quantity over 500KG.

2. For customers from Russia, Mexico, Turkey, Slovenia, Romania, etc, before placing an order, please kindly confirm if you can make clearance when goods reach your customs.


Logistics transportation methods can be divided into various ways according to the different transportation means.

Delivery detail

Delivery Detail:Shipped in 7 days after payment.

Octamethylcyclotetrasiloxane picture

Packaging and shipping

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