Key Documents

View All Documentation

PHR1114

Stearic Acid

Name: Stearic Acid
Brand: SIAL

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym(s):

Stearic acid, 1-Heptadecanecarboxylic acid, C18:0, Cetylacetic acid, NSC 25956, NSC 261168, Octadecanoic acid, Stearophanic acid

Select a Size

Change View

About This Item

Linear Formula:

CH₃(CH₂)₁₆COOH

CAS Number:

57-11-4

Molecular Weight:

284.48

UNSPSC Code:

41116107

NACRES:

NA.24

PubChem Substance ID:

329823135

EC Number:

200-313-4

Beilstein/REAXYS Number:

608585

MDL number:

MFCD00002752

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

Quality Level

300

grade

certified reference material, pharmaceutical secondary standard

agency

traceable to Ph. Eur. S1340000, traceable to USP 1621008

vapor pressure

1 mmHg ( 173.7 °C)

API family

stearic acid

CofA

current certificate can be downloaded

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

bp

361 °C (lit.)

mp

67-72 °C (lit.)

application(s)

cleaning products
cosmetics
food and beverages
personal care
pharmaceutical (small molecule)

format

neat

storage temp.

2-30°C

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

Description

General description

Stearic acid is a saturated fatty acid, which is a long aliphatic chain containing a carboxyl group at one end and a methyl group at the other. Pharmaceutically, it is used as a lubricant in tablet and capsule formulations and as an emulsifying and solubilizing agent in topical formulations.
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Application

Stearic acid may be used as a pharmaceutical reference standard for the determination of the analyte in raw material, food and pharmaceutical formulations by gas chromatography.

These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Analysis Note

These secondary standards offer multi-traceability to the USP and EP (PhEur) primary standards, where they are available.

Other Notes

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

To see an example of a Certificate of Analysis for this material enter LRAA7125 in the slot below. This is an example certificate only and may not be the lot that you receive.

Still not finding the right product?

Explore all of our products under Stearic Acid

Storage Class

11 - Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Articles

Extractables Study with LC-UV/MS

Ascentis^® C18 column facilitates LC-UV/MS analysis of extractables from single-use systems, ensuring reliable identification and quantification.

Stearic acid

Pharmacopeia, US

United States Pharmacopeia/National Formulary, 29(2), 6068-6068 (2018)

Novel method for quantification of individual free fatty acids in milk using an in-solution derivatisation approach and gas chromatography-mass spectrometry

Amer B, et al.

International dairy journal, 32(2), 199-203 (2013)

Qualitative and quantitative determination of the fatty acids by gas-liquid chromatography

James AT

Methods of Biochemical Analysis, 1-59 (1960)

View All Related Papers

Global Trade Item Number

SKU	GTIN
PHR1114-1G	04061835233106