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  6. Octamethylcyclotetrasiloxane, 98%, Thermo Scientific Chemicals
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Octamethylcyclotetrasiloxane, 98%, Thermo Scientific Chemicals

Product Code. 10226560
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Quantity:
25 g
100 g
500 g
Packaging:
Glass bottle

Description

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 556-67-2
Molecular Formula C8H24O4Si4
Molecular Weight (g/mol) 296.61
MDL Number MFCD00003269
InChI Key HMMGMWAXVFQUOA-UHFFFAOYSA-N
Synonym octamethylcyclotetrasiloxane, cyclotetrasiloxane, octamethyl, oktamethylcyklotetrasiloxan, cyclic dimethylsiloxane tetramer, omcts, nuc silicone vs 7207, union carbide 7207, silicone sf 1173, oktamethylzyklotetrasiloxan, unii-cz227117je
PubChem CID 11169
ChEBI CHEBI:25640
IUPAC Name 2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
SMILES C[Si]1(O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)C

Specifications

CAS Min % 97.5
CAS Max % 100.0
Melting Point 17.0°C to 18.0°C
Color Colorless
Density 0.9560g/mL
Boiling Point 175.0°C to 176.0°C
Flash Point 56°C
Infrared Spectrum Authentic
Assay Percent Range 98%
Packaging Glass bottle
Refractive Index 1.3950 to 1.3970
Quantity 25 g
Beilstein 04, III, 1885
Merck Index 15, 6836
Specific Gravity 0.956
Solubility Information Solubility in water: insoluble. Other solubilities: soluble in carbon tetrachloride
Formula Weight 296.61
Percent Purity 98%
Physical Form Liquid
Chemical Name or Material Octamethylcyclotetrasiloxane
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Safety and Handling

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Signal Word
  • Warning
 Hazard Category
  • LONG-TERM AQUATIC HAZARD Chronic 1
  • Flammable liquid Category 3
  • Reproductive toxicity Category 2
 Hazard Statement
  • H226-Flammable liquid and vapour.
  • H361f-Suspected of damaging fertility.
  • H410-Very toxic to aquatic life with long lasting effects.
 Precautionary Statement
  • P201-Obtain special instructions before use.
  • P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P280-Wear protective gloves/protective clothing/eye protection/face protection.
  • P303+P361+P353-IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.
  • P308+P313-IF exposed or concerned: Get medical advice/attention.

RUO – Research Use Only

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