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134457

Sigma-Aldrich

Docosane

99%

Synonym(s):

n-Docosane

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About This Item

Linear Formula:
CH3(CH2)20CH3
CAS Number:
629-97-0
Molecular Weight:
310.60
Beilstein:
1702206
EC Number:
211-121-5
MDL number:
MFCD00009348
UNSPSC Code:
12352100
PubChem Substance ID:
24848154
NACRES:
NA.22
Pricing and availability is not currently available.

vapor density

10.8 (vs air)

Quality Level

100

vapor pressure

<1 mmHg ( 21.1 °C)

Assay

99%

form

solid

bp

369 °C (lit.)

mp

42-45 °C (lit.)

density

0.778 g/mL at 25 °C (lit.)

SMILES string

CCCCCCCCCCCCCCCCCCCCCC

InChI

1S/C22H46/c1-3-5-7-9-11-13-15-17-19-21-22-20-18-16-14-12-10-8-6-4-2/h3-22H2,1-2H3

InChI key

HOWGUJZVBDQJKV-UHFFFAOYSA-N

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Application

Docosane was used to investigate commercially available waxes in the form of thin disc samples as possible diffraction intensity standards for macromolecular crystallography synchrotron beamlines[1].

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

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

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Certificates of Analysis (COA)

Lot/Batch Number
0000432066
0000432068
0000432068
0000432066
0000360299

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J Brandao-Neto et al.
Journal of synchrotron radiation, 17(1), 53-60 (2009-12-24)
A number of commercially available waxes in the form of thin disc samples have been investigated as possible diffraction intensity standards for macromolecular crystallography synchrotron beamlines. Synchrotron X-ray powder diffraction measurements show that beeswax offers the best performance of these
Cédric Pisani et al.
Nanoscale, 9(5), 1840-1851 (2016-11-20)
Magnetic mesoporous silica nanoparticles (M-MSNs) represent promising targeting tools for theranostics. Engineering the interaction of nanoparticles (NPs) with biological systems requires an understanding of protein corona formation around the nanoparticles as this drives the biological fate of nanocarriers. We investigated
H Kraack et al.
The Journal of chemical physics, 121(16), 8003-8009 (2004-10-16)
The temperature dependent phase behavior of Langmuir films of n-alkanes [CH3(CH2)(n-2)CH3, denote Cn] on mercury was studied for chain lengths 19< or =n< or =22 and temperatures 15< or =T< or =44 degrees C, using surface tensiometry and surface x-ray
Leisha M Armijo et al.
Journal of nanobiotechnology, 18(1), 35-35 (2020-02-20)
Novel methods are necessary to reduce morbidity and mortality of patients suffering from infections with Pseudomonas aeruginosa. Being the most common infectious species of the Pseudomonas genus, P. aeruginosa is the primary Gram-negative etiology responsible for nosocomial infections. Due to
Auke J Kronemeijer et al.
Small (Weinheim an der Bergstrasse, Germany), 7(11), 1593-1598 (2011-05-04)
Charge transport through alkanes and para-phenylene oligomers is investigated in large-area molecular junctions. The molecules are self-assembled in a monolayer and contacted with a top electrode consisting of poly(3,4-ethylenedioxythiophene)-poly(4-styrenesulfonic acid) (PEDOT:PSS). The complete set of J(V,T) characteristics of both saturated
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    1 answer

    1. 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/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. 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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