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  6. Octamethylcyclotetrasiloxane, 98%, Thermo Scientific™

Octamethylcyclotetrasiloxane, 98%, Thermo Scientific™

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Chemical Identifiers

CAS 556-67-2
Molecular Formula C8H24O4Si4
Molecular Weight (g/mol) 296.61
MDL Number MFCD00003269
InChI Key HMMGMWAXVFQUOA-UHFFFAOYSA-N
Synonym cyclic dimethylsiloxane tetramer, cyclotetrasiloxane, octamethyl, nuc silicone vs 7207, octamethylcyclotetrasiloxane, oktamethylcyklotetrasiloxan, oktamethylzyklotetrasiloxan, omcts, silicone sf 1173, unii-cz227117je, union carbide 7207
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
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Products 3
Catalog Number Mfr. No. Quantity Packaging Price Quantity  
Catalog Number Mfr. No. Quantity Packaging Price Quantity  
AC216470250
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Thermo Fisher Scientific
216470250 		25g Glass bottle
Each for $54.28
 
AC216471000
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Thermo Fisher Scientific
216471000 		100g Glass bottle
Each for $150.52
 
AC216475000
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Thermo Fisher Scientific
AC216475000 		500g Glass bottle
Each for $383.96
 
Description

Description

This Thermo Scientific 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.

Specifications

Chemical Identifiers

556-67-2
296.61
HMMGMWAXVFQUOA-UHFFFAOYSA-N
11169
2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
C8H24O4Si4
MFCD00003269
cyclic dimethylsiloxane tetramer, cyclotetrasiloxane, octamethyl, nuc silicone vs 7207, octamethylcyclotetrasiloxane, oktamethylcyklotetrasiloxan, oktamethylzyklotetrasiloxan, omcts, silicone sf 1173, unii-cz227117je, union carbide 7207
CHEBI:25640
C[Si]1(O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)C

Specifications

556-67-2
100.0
Colorless
175.0°C to 176.0°C
98%
C8H24O4Si4
04, III, 1885
15, 6836
cyclic dimethylsiloxane tetramer, cyclotetrasiloxane, octamethyl, nuc silicone vs 7207, octamethylcyclotetrasiloxane, oktamethylcyklotetrasiloxan, oktamethylzyklotetrasiloxan, omcts, silicone sf 1173, unii-cz227117je, union carbide 7207
Solubility in water: insoluble. Other solubilities: soluble in carbon tetrachloride
0.956
2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
11169
296.61
98%
97.5
0.9560g/mL
17.0°C to 18.0°C
56°C
Authentic
MFCD00003269
Glass bottle
1.3950 to 1.3970
25g
HMMGMWAXVFQUOA-UHFFFAOYSA-N
C[Si]1(O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)C
296.61
CHEBI:25640
Liquid
Octamethylcyclotetrasiloxane
Safety and Handling

Safety and Handling

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

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

GHS Signal Word: Warning

EINECSNumber : 209-136-7

SDS
Product Certifications

RUO – Research Use Only