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Merck

PHR1114

Acide stéarique

Pharmaceutical Secondary Standard; Certified Reference Material

Synonyme(s) :

Acide stéarique

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A propos de cet article

Formule linéaire :
CH3(CH2)16COOH
Numéro CAS:
57-11-4
Poids moléculaire :
284.48
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329823135
EC Number:
200-313-4
Beilstein/REAXYS Number:
608585
MDL number:
MFCD00002752

Principaux documents

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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)

SMILES string

CCCCCCCCCCCCCCCCCC(O)=O

InChI key

QIQXTHQIDYTFRH-UHFFFAOYSA-N

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

Quality Level

300

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Catégories apparentées

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.

Classe de stockage

11 - Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Consulter la Bibliothèque de documents

Qualitative and quantitative determination of the fatty acids by gas-liquid chromatography
James AT
Methods of Biochemical Analysis, 1-59 (1960)
Handbook of Pharmaceutical Excipients, 6th Edition
Handbook of Pharmaceutical Excipients 6th edition Pharmaceutical Press, 697-699 (2009)
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)
Ulla Hoppu et al.
Journal of pediatric gastroenterology and nutrition, 41(3), 335-338 (2005-09-01)
Breast milk fatty acids may have immunomodulatory properties related to the development of atopic disease. The aim of this study was to assess the impact of the breast milk fatty acid composition on the development of atopic dermatitis (AD) in
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