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1154707

USP

Cyclomethicone 4

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

Octamethylcyclotetrasiloxane

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About This Item

Linear Formula:
[-Si(CH3)2O-]4
CAS Number:
Molecular Weight:
296.62
Beilstein:
1787074
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

pharmaceutical primary standard

vapor density

1 (vs air)

API family

cyclomethicone

form

liquid

manufacturer/tradename

USP

refractive index

n20/D 1.396 (lit.)

bp

175-176 °C (lit.)

mp

17-18 °C (lit.)

density

0.956 g/mL at 25 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

SMILES string

C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1

InChI

1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3

InChI key

HMMGMWAXVFQUOA-UHFFFAOYSA-N

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.
For further information and support please go to the website of the issuing Pharmacopoeia.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

Signal Word

Warning

Hazard Statements

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 3 - Repr. 2

WGK

WGK 3

Regulatory Information

危险化学品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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