Octamethylcyclotetrasiloxane CAS#: 556-67-2; ChemWhat Code: 32942
Names & Identifiers |
| Product Name | Octamethylcyclotetrasiloxane |
| Synonyms | REQ;zinc and double PHD fingers family 2;STRAY LIGHT FILTER(260NM) RSPEC00371;Dimethylsiloxane cyclic tetramer≥ 97% (assay);D4 Octamethylcyclotetrasiloxane;Cyclomethicone 4;DIMETHYLSILOXANE CYCLIC TETRAMER;D4 |
| CAS Registry Number | 556-67-2 |
| Molecular Formula | C8H24O4Si4 |
| Molecular Weight | 296.62 |
| EINECS | 209-136-7 |
| Other Registry Numbers | ; |
| More Identifiers on PubChem | IUPA Names, InChI, InChI Key, Canonical SMILES, etc. |
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Chemical & Physical Properties |
| Melting point | 17-18 °C(lit.) |
| Boiling Point | 175-176 °C(lit.) |
| Density | 0.956 g/mL at 25 °C(lit.) |
| vapor Density | 1 (vs air) |
| Refractive Index | n |
| Flash Point | 140 °F |
| Storage | 2-8°C |
| Solubulity | <0.001g/l Hydrolysis |
| Explosive Limit | 0.4-11.7%(V) |
| Water Solubility | INSOLUBLE |
| Sensitive | Moisture Sensitive |
| Merck | 14,6747 |
| BRN | 1787074 |
| More Properties From PubChem | Topological Polar Surface Area, Monoisotopic Mass, etc. |
| NIST Chemistry Reference | Cyclotetrasiloxane, octamethyl-(556-67-2) |
| EPA Substance Registry System | Cyclotetrasiloxane, octamethyl-(556-67-2) |
Safety & Hazards(Codes & Phrases) |
| Hazard Codes | Xn |
| R Phrase | 53-62-10 |
| S Phrase | 36/37-46-51-61 |
| RIDADR | UN 1993 3/PG 3 |
| WGK Germany | 1 |
| RTECS | GZ4397000 |
| TSCA | Yes |
| Storage Class | 3 |
| Packing Group | III |
| Hazardous Substances Data | 556-67-2(Hazardous Substances Data) |
| More Safety & Hazards From PubChem | Signal, GHS Hazard Statements, Precautionary Statement Codes, etc. |
Literature |
| Literature on PubChem | Synthesis References, Metabolite References, etc. |
Patents |
| Patents on PubChem | Related Patents Of This Product |
Transportation, Storage & Usage |
| Transportation | No Information |
| Storage | No Information |
| Usage | No Information |
Spectral Properties |
| No Information |
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