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Heptamethyl trisiloxane

Name: Heptamethyl trisiloxane
Brand: USP
Price: 276 USD
Availability: InStock

United States Pharmacopeia (USP) Reference Standard

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Synonym(s):

1,1,1,3,5,5,5-Heptamethyltrisiloxane

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Size/SKU	Availability	Price
150 mg	Available to ship TODAY	$276.00

About This Item

Linear Formula:

[(CH₃)₃SiO]₂SiHCH₃

CAS Number:

1873-88-7

Molecular Weight:

222.50

UNSPSC Code:

41116107

NACRES:

NA.24

PubChem Substance ID:

329749686

MDL number:

MFCD00048000

Beilstein/REAXYS Number:

1748455

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Properties

grade

pharmaceutical primary standard

agency

USP

API family

simethicone

manufacturer/tradename

USP

refractive index

n20/D 1.382 (lit.)

bp

142 °C (lit.)

density

0.819 g/mL at 25 °C (lit.)

application(s)

pharmaceutical (small molecule)
pharmaceutical

format

neat

storage temp.

15-25°C

SMILES string

C[SiH](O[Si](C)(C)C)O[Si](C)(C)C

InChI

1S/C7H22O2Si3/c1-10(8-11(2,3)4)9-12(5,6)7/h10H,1-7H3

InChI key

QNWOFLWXQGHSRH-UHFFFAOYSA-N

Description

General description

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

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.

Application

Heptamethyl trisiloxane USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia.

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.

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1 of 1

This Item	370886	1228010	1041915
USP 1228075 Heptamethyl trisiloxane	Sigma-Aldrich 370886 1,1,1,3,5,5,5-Heptamethyltrisiloxane	USP 1228010 Drometrizole trisiloxane	USP 1041915 Aprepitant Related Compound A
description United States Pharmacopeia (USP) Reference Standard	description 97%	description United States Pharmacopeia (USP) Reference Standard	description United States Pharmacopeia (USP) Reference Standard
grade pharmaceutical primary standard	grade -	grade pharmaceutical primary standard	grade pharmaceutical primary standard
manufacturer/tradename USP	manufacturer/tradename -	manufacturer/tradename USP	manufacturer/tradename USP
format neat	format -	format neat	format neat
application(s) pharmaceutical (small molecule)	application(s) -	application(s) pharmaceutical (small molecule)	application(s) pharmaceutical (small molecule)
API family simethicone	API family -	API family drometrizole	API family aprepitant
refractive index n20/D 1.382 (lit.)	refractive index n20/D 1.382 (lit.)	refractive index -	refractive index -

Pictograms

GHS02,GHS07

Signal Word

Danger

Hazard Codes

H225,H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class

3 - Flammable liquids

Flash Point (°F)

71.6 °F - closed cup

Flash Point (°C)

22 °C - closed cup

Precautionary Statements

P210 - P233 - P240 - P280 - P303 + P361 + P353 - P305 + P351 + P338

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