PENTAMETHYLCYCLOPENTASILOXANE
- CAS NO.：6166-86-5
- Empirical Formula: C5H20O5Si5
- Molecular Weight: 300.64
- MDL number: MFCD00053531
- EINECS: 228-204-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 01:59:01
What is PENTAMETHYLCYCLOPENTASILOXANE?
The Uses of PENTAMETHYLCYCLOPENTASILOXANE
2,4,6,8,10-Pentamethylcyclopentasiloxane is an active reagent in the preparation of cyclolinear polysiloxanes and in the preparation of novel class of hybrid polyurethanes.
Flammability and Explosibility
Flammable
Properties of PENTAMETHYLCYCLOPENTASILOXANE
| Melting point: | -108°C |
| Boiling point: | 54 °C/10 mmHg (lit.) |
| Density | 0.992 g/mL at 25 °C (lit.) |
| vapor pressure | 0.05-91Pa at 20℃ |
| refractive index | n |
| Flash point: | 39°C |
| storage temp. | 2-8°C |
| form | liquid |
| Specific Gravity | 0.998 |
| Water Solubility | 110-1000000000μg/L at 20℃ |
| Hydrolytic Sensitivity | 3: reacts with aqueous base |
| BRN | 1792134 |
| EPA Substance Registry System | Cyclopentasiloxane, 2,4,6,8,10-pentamethyl- (6166-86-5) |
Safety information for PENTAMETHYLCYCLOPENTASILOXANE
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H226:Flammable liquids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P243:Take precautionary measures against static discharge. |
Computed Descriptors for PENTAMETHYLCYCLOPENTASILOXANE
New Products
9-Mesityl-10-methylacridinium perchlorate Sulfapyridine Fmoc-OSu (R)-(-)-2-Amino-1-propanol Cyclobutanone 5-bromo-4-fluoro-2-nitrobenzaldehyde 4 pentyn 1 ol N-Vinylformamide Phenethyl cinnamate Pyrrolo[1,2-a]pyrimidine-6-carboxylic acid, 4,6,7,8-tetrahydro-4-oxo-, sodium salt (1:1), (6S) Ethyl 3-phenylpropanoate β-Bromostyrene Methacrylate-PEG-Methacrylate, Mn:35000 2,4-Dihydroxyacetophenone 2-Chloro 5-Fluoro Pyridine Vasicinone 2-Chloroisonicotinic Acid Tween 80 or Polysorbate 80 Methyl trans-4-Aminocyclohexanecarboxylate Hydrochloride N-(4-fluoro-2-methoxy-5-nitrophenyl)-4-(1-methyl-1H-indol-3-yl)pyrimidin-2-amine Pirtobrutinib intd. 4-Nitrobenzotrifluoride 2-Pentyn-1-oL N-(4-Cyano-3-(trifluoromethyl)phenyl)-2-methyloxirane-2-carboxamideRelated products of tetrahydrofuran
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