Merck
All Photos(1)

1621008

USP

Stearic acid

United States Pharmacopeia (USP) Reference Standard

Synonym(s):
Octadecanoic acid, Stearophanic acid, NSC 25956, 1-Heptadecanecarboxylic acid, C18:0, NSC 261168, Cetylacetic acid
Linear Formula:
CH3(CH2)16COOH
CAS Number:
Molecular Weight:
284.48
Beilstein:
608585
MDL number:
PubChem Substance ID:
NACRES:
NA.24

grade

pharmaceutical primary standard

vapor pressure

1 mmHg ( 173.7 °C)

manufacturer/tradename

USP

bp

361 °C (lit.)

mp

67-72 °C (lit.)

solubility

acetone: soluble
benzene: freely soluble
chloroform: freely soluble
ethanol: soluble
ether: freely soluble
propylene glycol: soluble
water: practically insoluble

density

0.845 g/cm3

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

CCCCCCCCCCCCCCCCCC(O)=O

InChI

1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20)

InChI key

QIQXTHQIDYTFRH-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

USP issued SDS can be found here.
Sales restrictions may apply.

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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