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Polyisobutylene

Name: Polyisobutylene
Brand: USP

United States Pharmacopeia (USP) Reference Standard

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About This Item

Linear Formula:

[CH₂C(CH₃)₂]_n

CAS Number:

9003-27-4

UNSPSC Code:

41116107

NACRES:

NA.24

MDL number:

MFCD00084436

eCl@ss:

25140904

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Properties

grade

pharmaceutical primary standard

agency

USP

API family

polyisobutylene

mol wt

M_w ~37000

manufacturer/tradename

USP

density

0.92 g/mL at 25 °C (lit.)

application(s)

pharmaceutical (small molecule)
pharmaceutical

format

neat

SMILES string

CC(C)=C

InChI

1S/C4H8/c1-4(2)3/h1H2,2-3H3

InChI key

VQTUBCCKSQIDNK-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

Polyisobutylene 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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This Item	181463	181455	1545090
USP 1546966 Polyisobutylene	Sigma-Aldrich 181463 Polyisobutylene	Sigma-Aldrich 181455 Polyisobutylene	USP 1545090 Plastic Additive 18
description United States Pharmacopeia (USP) Reference Standard	description average M_v ~1,200,000	description average M_w ~500,000, average M_n ~200,000 by GPC/MALLS, average M_v ~420,000	description United States Pharmacopeia (USP) Reference Standard
grade pharmaceutical primary standard	grade -	grade -	grade pharmaceutical primary standard
manufacturer/tradename USP	manufacturer/tradename -	manufacturer/tradename -	manufacturer/tradename USP
application(s) pharmaceutical (small molecule) pharmaceutical	application(s) -	application(s) -	application(s) pharmaceutical pharmaceutical pharmaceutical small molecule
format neat	format -	format -	format mixture
API family polyisobutylene	API family -	API family -	API family plastic additive
mol wt M_w ~37000	mol wt average M_v ~1,200,000	mol wt average M_n ~200,000 by GPC/MALLS, average M_v ~420,000, average M_w ~500,000	mol wt -

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Storage Class

10 - Combustible liquids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

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