1154707

Cyclomethicon 4

United States Pharmacopeia (USP) Reference Standard

• Synonym(e): Octamethylcyclotetrasiloxan
• Lineare Formel: [-Si(CH₃)₂O-]₄
• CAS-Nummer: 556-67-2
• Molekulargewicht: 296.62
• UNSPSC Code: 41116107
• NACRES: NA.24
• PubChem Substance ID: 329749481
• MDL number: MFCD00003269
• Beilstein/REAXYS Number: 1787074
• eCl@ss: 25140904

Eigenschaften

• grade: pharmaceutical primary standard
• agency: USP
• 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; 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

Beschreibung

General description

Find answers to frequently asked questions on USP products in USP FAQs.

This compound is listed in the SVHC (Substances of very high concern) candidate list of ECHA (European Chemicals Agency)

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.

Sicherheitshinweise

• Piktogramme: GHS02,GHS08,GHS09
• Lagerklasse: 3 - Flammable liquids
• Flammpunkt (°F): 123.8 °F - closed cup
• Flammpunkt (°C): 51 °C - closed cup
• Signalwort: Danger
• Gefahrencodes: H226,H361f,H410,EUH441
• Sicherheitshinweise: P201 - P202 - P210 - P273 - P391 - P501
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 3 - PBT - Repr. 2 - vPvB