Octamethylcyclotetrasiloxane(CAS 556-67-2)
| Purity | Grade | Package | Stock | Price | Quantity |
| 98% | RG | 25ML | In Stock | 3 USD
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| 98% | RG | 100ML | In Stock | 6 USD
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| 98% | RG | 500ML | In Stock | 10 USD
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| 98% | RG | 2.5L | In Stock | 31 USD
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| 98% | RG | 25KG | In Stock | 231 USD
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Quality System
Physical and chemical properties of 556-67-2
Boiling Point |
175 °C |
|---|---|
BRN |
1787074 |
Decomposition |
When heated to decomposition it emits acrid smoke and irritating vapors. |
Density |
Relative density (water = 1): 0.96 |
Exact Mass |
296.075165 |
explosive limit |
0.4-11.7%(V) |
Flash Point |
56 °C |
Index of Refraction |
Index of refraction: 1.3968 at 20 °C/D |
LogP |
log Kow = 6.74 (average of 3 measurements) |
Melting Point |
17.5 °C |
Merck |
14,6747 |
Molecular Formula |
C8H24O4Si4 |
Molecular Weight |
296.616 |
PSA |
36.92000 |
Sensitivity |
Moisture Sensitive |
Stability |
Stable under recommended storage conditions. |
Storage condition |
2-8°C |
Vapour density |
1 (vs air) |
Vapour Pressure |
Vapor pressure, Pa at 21.7 °C: 133.3 |
Water Solubility |
INSOLUBLE |
Spectrums of 556-67-2
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Retrosynthesis analysis of 556-67-2
Cas:541-02-6
Cas:541-05-9
Cas:88703-87-1
Q&A for CAS 556-67-2
1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.
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Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.
3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
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Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
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Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
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Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
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Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
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Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.
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Download SDS of 556-67-2
Pictograms |
  |
|---|---|
Signal Word |
Warning |
Hazard Statements |
H226 Flammable liquid and vapor H361 Suspected of damaging fertility or the unborn child H413 May cause long lasting harmful effects to aquatic life |
Safety Data Sheet |
Download COA of 556-67-2
Operate under the ISO 9001 system
