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Merck
CN

77402

Melting Point Standard 69-71°C

analytical standard

Synonym(s):

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

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About This Item

Linear Formula:
CH3(CH2)16COOH
CAS Number:
Molecular Weight:
284.48
UNSPSC Code:
20121904
NACRES:
NA.24
PubChem Substance ID:
EC Number:
200-313-4
Beilstein/REAXYS Number:
608585
MDL number:
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InChI key

QIQXTHQIDYTFRH-UHFFFAOYSA-N

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

grade

analytical standard

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

Quality Level

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.
This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food.

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

11 - Combustible Solids

wgk

nwg

flash_point_f

392.0 °F - Cleveland open cup

flash_point_c

200 °C - Cleveland open cup

ppe

dust mask type N95 (US), Eyeshields, Gloves


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In Vitro Starch Digestion and Physicochemical Properties of Maize Starch and Maize Meal Modified by Heat-Moisture Treatment and Stearic Acid
Asare IK, et al.
Starch/Staerke (2021)
Palle J Pedersen et al.
Journal of medicinal chemistry, 53(9), 3782-3792 (2010-04-22)
The design of retinoid phospholipid prodrugs is described based on molecular dynamics simulations and cytotoxicity studies of synthetic retinoid esters. The prodrugs are degradable by secretory phospholipase A(2) IIA and have potential in liposomal drug delivery targeting tumors. We have
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
S M Grundy
The American journal of clinical nutrition, 60(6 Suppl), 986S-990S (1994-12-01)
Stearic acid is a long-chain saturated fatty acid. However, in contrast with other saturated fatty acids, stearic acid apparently does not raise serum cholesterol concentrations. Studies carried out three decades ago provided strong suggestive evidence that this was the case.
A M Turpeinen et al.
Arteriosclerosis, thrombosis, and vascular biology, 18(2), 316-322 (1998-03-04)
The effects of stearic acid (C18:0) and trans-fatty acids (trans-FAs) on measures of platelet function and prostacyclin (PGI2) production are poorly understood in humans. In this controlled dietary study, platelet function and endothelial PGI2 production were studied in healthy humans

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