Octamethylcyclotetrasiloxane, 98%, Thermo Scientific Chemicals

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.

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

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

Specific Gravity

0.956

Merck Index

15, 6836

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

Hazard Category

GHS Signal Word: Warning

Hazard Statement

GHS H Statement
Suspected of damaging fertility.
May cause long lasting harmful effects to aquatic life.
Flammable liquid and vapor.

Precautionary Statement

GHS P Statement
Wear protective gloves/protective clothing/eye protection/face protection.
IF ON SKIN: Gently wash with plenty of soap and water.
Obtain special instructions before use.
IF exposed or concerned: Get medical advice/at

EINECSNumber

209-136-7

SDS

Hazard Category

GHS Signal Word: Warning

Hazard Statement

GHS H Statement
Suspected of damaging fertility.
May cause long lasting harmful effects to aquatic life.
Flammable liquid and vapor.

Precautionary Statement

GHS P Statement
Wear protective gloves/protective clothing/eye protection/face protection.
IF ON SKIN: Gently wash with plenty of soap and water.
Obtain special instructions before use.
IF exposed or concerned: Get medical advice/at

EINECSNumber

209-136-7

SDS

RUO – Research Use Only