77402
熔点标准品 69-71°C
analytical standard
别名:
硬脂酸, 1-十八碳烷酸, C18:0, NSC 25956, NSC 261168, 十八烷酸
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关于此项目
线性分子式:
CH3(CH2)16COOH
化学文摘社编号:
分子量:
284.48
UNSPSC Code:
20121904
NACRES:
NA.24
PubChem Substance ID:
EC Number:
200-313-4
Beilstein/REAXYS Number:
608585
MDL number:
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
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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.
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
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.
存储类别
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
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
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
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
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
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