This product is poorly soluble in water or aqueous buffers but is soluble in many organic solvents, including methanol, ethanol, ethyl acetate, acetone, dimethyl sulfoxide, dimethyl formamide, chloroform, and light petroleum.
85679
Stearic acid
analytical standard
Synonym(s):
1-Heptadecanecarboxylic acid, C18:0, Cetylacetic acid, NSC 25956, NSC 261168, Octadecanoic acid, Stearophanic acid
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| Size/SKU | Availability | Price |
|---|---|---|
500 mg | Please contact Customer Service for Availability | CZK 1,110.00 |
5 g | Please contact Customer Service for Availability | CZK 4,440.00 |
About This Item
Linear Formula:
CH3(CH2)16COOH
CAS Number:
Molecular Weight:
284.48
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
EC Number:
200-313-4
Beilstein/REAXYS Number:
608585
MDL number:
grade
analytical standard
Quality Segment
vapor pressure
1 mmHg ( 173.7 °C)
assay
≥98.5%
shelf life
limited shelf life, expiry date on the label
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
format
neat
functional group
carboxylic acid
shipped in
ambient
storage temp.
room temp
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
General description
Stearic acid belongs to the group of saturated long-chain fatty acids, commonly found in animal and plant fats.
Application
This analytical standard can also be used as follows:
- Development of a non-destructive Vis-NIR reflectance spectroscopy-based method for the detection of four fatty acids in 93 samples of seven different edibles oils
- Simultaneous identification and quantification of fatty acids from blood plasma samples after their methyl derivatization by large-volume injection (LVI) gas chromatography combined with vacuum ultraviolet spectroscopy (GC-VUV)
- Determination of the fatty acid composition of sunflower seed oils extracted from 93 different sunflower varieties by near-infrared reflectance spectroscopy (NIRS) combined with modified partial least squares (MPLS) and partial least squares (PLS) regression methods
- Identification and quantification of fatty acids in various herbal anti-diabetic formulations by gas chromatography-mass spectrometry (GC-MS)
- Multi-residue analysis of oleic acid and other related fatty acids using a derivatization-free method based on gas chromatography-flame ionization detection (GC-FID)
- Ultra-performance liquid chromatography-mass spectrometry (UHPLC) method-based separation, identification, and determination of eight saturated and unsaturated fatty acids in eight different commercial samples of olive oil without any prior sample treatment
- Development of a liquid chromatography-mass spectrometry (LC-MS) method to measure seven fatty acid esters of hydroxy fatty acids (FAHFAs), four fatty acids, and four cardiovascular-related biomarkers in plasma samples of 57 healthy individuals
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.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
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This Item | |||
|---|---|---|---|
| grade analytical standard | grade - | grade reagent grade | grade pharmaceutical primary standard |
| technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) - | technique(s) - | technique(s) - |
| application(s) cleaning products | application(s) - | application(s) - | application(s) USP Biologics |
| format neat | format - | format - | format neat |
| shipped in ambient | shipped in ambient | shipped in - | shipped in - |
| mp 67-72 °C (lit.) | mp 67-72 °C (lit.) | mp 67-72 °C (lit.) | mp 67-72 °C (lit.) |
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Storage Class
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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How can I determine the shelf life / expiration / retest date of this product?
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If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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