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77402

Supelco

Melting Point Standard 69-71°C

analytical standard

Synonym(s):
Octadecanoic acid, Stearophanic acid, Stearic 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
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.24

grade

analytical standard

Quality Level

vapor pressure

1 mmHg ( 173.7 °C)

shelf life

limited shelf life, expiry date on the label

bp

361 °C (lit.)

mp

67-72 °C (lit.)
69-71 °C (±0.3°C)

application(s)

food and beverages
pharmaceutical

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

Melting point standard 69-71 °C, stearic acid is an mp standard, ideal for the routine calibration of melting point apparatus to assure its accuracy, as per local, national and international standards laboratories. The mp value is documented as an average of 6 to 12 iterations using a Büchi B-545 equipment that is calibrated against primary standards. Melting point is ascertained by Capillary method, according to Ph. Eur. 2.2.14.

Application

Stearic Acid melting point standard 69-71 °C is a melting point calibration standard, used for determining the identity and purity of chemical substances.
This product also has additional use as a reference standard in thermal property studies.

Features and Benefits

  • Traceable to primary standards from LGC, London
  • Grade: Analytical Standard
  • Melting point as confirmed in the thermodynamic mode of analysis
  • Measured uncertainty up to ± 0.3 °C
  • Available with certificates of analysis and safety data sheet

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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).

T A Doran et al.
American journal of obstetrics and gynecology, 133(3), 302-307 (1979-02-01)
Lecithin/sphingomyelin (L/S) ratio, creatinine, percentage of lipid-positive cells, palmitic acid, palmitic acid/stearic acid (P/S) ratio, and total cortisol were analyzed as tests for fetal maturity and fetal pulmonary maturity in 164 samples of amniotic fluid from 121 patients. Fifty samples
Qian Wan et al.
Nanoscale, 5(2), 744-752 (2012-12-12)
As a versatile gene vector, minicircle DNA (mcDNA) has a great potential for gene therapy. However, some serious challenges remain, such as to effectively deliver mcDNA into targeted cells/tissues and to non-invasively monitor the delivery of the mcDNA. Superparamagnetic iron
Piret Arukuusk et al.
Biochimica et biophysica acta, 1828(5), 1365-1373 (2013-01-30)
Harnessing of a branched structure is a novel approach in the design of cell-penetrating peptides and it has provided highly efficient transfection reagents for intracellular delivery of nucleic acids. The new stearylated TP10 analogs, NickFects, condense plasmid DNA, splice correcting
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
Wonsik Lee et al.
The Journal of biological chemistry, 288(10), 6788-6800 (2013-01-12)
Recent data indicate that the nutrients available to Mycobacterium tuberculosis (Mtb) inside its host cell are restricted in their diversity. Fatty acids and cholesterol appear more favored; however, their degradation can result in certain metabolic stresses. Their breakdown can generate

Protocols

HPLC Analysis of Free Fatty Acids on SUPELCOSIL™ LC-8

Separation of Palmitic acid; Linoleic acid; Palmitelaidic acid; Linolelaidic acid; Stearic acid; Oleic acid; Elaidic acid; Methyl palmitoleate.

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