N1-(3-Trimethoxysilylpropyl)diethylenetriamine, 90%
- CAS
- 35141-30-1
- Formula
- C10H27N3O3Si
- MW
- 265.43 g/mol
ZX-010192
Organosilicon Compounds & Silanes
Octamethylcyclotetrasiloxane, 98%
Available on request
Octamethylcyclotetrasiloxane, 98% (CAS 556-67-2) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-010193.
CAS number556-67-2
FormulaC8H24O4Si4
Molar mass296.61 g/mol
Physical formLiquid
HS code29420090
Purity≥98%
InChIKeyHMMGMWAXVFQUOA-UHFFFAOYSA-N
IUPAC name2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
About Octamethylcyclotetrasiloxane, 98%
Octamethylcyclotetrasiloxane, 98% is part of the Zemixal organosilicon Compounds & Silanes range. Identity at a glance (≥98%): CAS 556-67-2, formula C8H24O4Si4 and molar mass 296.61 g/mol. Typical appearance is clear colourless liquid.
Use cases we see most often
- Cosmetics & personal care
- Rubber compounding
Safe handling
Literature values: melting point 18 °C. Classified under GHS with signal word Warning and hazard statements H410. Read the SDS before first use.
Order it in 25 mL, 100 mL and 500 mL packs or ask for a bulk quotation. You receive a batch certificate of analysis and a 16-section SDS with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Typical uses
- Cosmetics & personal care
- Rubber compounding
Applications
Specifications and identifiers
| Product name | Octamethylcyclotetrasiloxane, 98% |
|---|---|
| Catalogue number | ZX-010193 |
| CAS number | 556-67-2 |
| IUPAC name | 2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane |
| Molecular formula | C8H24O4Si4 |
| Molar mass | 296.61 g/mol |
| Exact mass | 296.0752 |
| Purity / assay | ≥98% |
| Physical form | Liquid |
| Appearance | Clear colourless liquid |
| Melting point | 18 °C |
| H-bond donors / acceptors | 0 / 4 |
| Topological polar surface area | 36.9 Ų |
| HS code | 29420090 |
| InChIKey | HMMGMWAXVFQUOA-UHFFFAOYSA-N |
| SMILES | C[Si]1(O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)C |
| PubChem CID | 11169 |
| Synonyms | Octamethyltetrasiloxane, Cyclotetrasiloxane, octamethyl-, Cyclic dimethylsiloxane tetramer, Cyclomethicone 4, NUC silicone VS 7207, Union carbide 7207, Silicone SF 1173, KF 994, Dimethylsiloxane Cyclic Tetramer, 2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane, octamethyl-cyclotetrasiloxane |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H410Very toxic to aquatic life with long lasting effects
Precautionary statements P203, P273, P280, P318, P391, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 25 mL | Quoted on request | |
| 100 mL | Quoted on request | |
| 500 mL | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Octamethylcyclotetrasiloxane, 98%
Which CAS number identifies Octamethylcyclotetrasiloxane, 98%?
Octamethylcyclotetrasiloxane, 98% is registered under CAS 556-67-2. You may also see it listed as Octamethyltetrasiloxane, Cyclotetrasiloxane, octamethyl-, Cyclic dimethylsiloxane tetramer. Our catalogue number for this item is ZX-010193.
What are the formula and molar mass of Octamethylcyclotetrasiloxane, 98%?
For Octamethylcyclotetrasiloxane, 98%, its formula is C8H24O4Si4 and its molar mass is 296.61 g/mol. The systematic (IUPAC) name is 2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane. InChIKey HMMGMWAXVFQUOA-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Octamethylcyclotetrasiloxane, 98%?
This listing is ≥98% purity. Standard packs are 25 mL, 100 mL, 500 mL. Larger quantities and custom packing can be quoted on request.
Which documents come with Octamethylcyclotetrasiloxane, 98%?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Octamethylcyclotetrasiloxane, 98% to my country?
Yes. Because Octamethylcyclotetrasiloxane, 98% is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
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