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.pdf
Fortfahren mit
S3381
Natriumstearat
≥99%
Synonym(e):
Octadecansäure Natriumsalz, Stearinsäure Natriumsalz
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| Größe/SKU | Verfügbarkeit | Preis |
|---|
Über diesen Artikel
biological source
plant (vegetable)
Quality Segment
assay
≥99%
form
powder
functional group
ester
lipid type
saturated FAs
shipped in
ambient
storage temp.
2-8°C
SMILES string
[Na+].CCCCCCCCCCCCCCCCCC([O-])=O
InChI
1S/C18H36O2.Na/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);/q;+1/p-1
InChI key
RYYKJJJTJZKILX-UHFFFAOYSA-M
Application
- Stability test of novel combined formulated dry powder inhalation system containing antibiotic: physical characterization and in vitro-in silico lung deposition results.: Im Rahmen dieser Studie wird ein neuartiges System zur Trockenpulverinhalation mit Antibiotika und Natriumstearat untersucht. Es untersucht die physikalische Charakterisierung und die Effizienz der Lungendeposition und weist auf das Potenzial für eine verbesserte Wirkstoffabgabe in die Lunge hin (Benke et al., 2019).
- Protective effect of sodium stearate on the moisture-induced deterioration of hygroscopic spray-dried powders.: Diese Studie unterstreicht die Rolle von Natriumstearat beim Schutz von hygroskopischen, sprühgetrockneten Pulvern vor feuchtigkeitsbedingtem Abbau, was für die Erhaltung der Stabilität und Wirksamkeit pharmazeutischer Produkte von entscheidender Bedeutung ist (Yu et al., 2018).
- Dissolution of a poorly water-soluble drug dry coated with magnesium and sodium stearate.: In dieser Studie wird der Einsatz von Natriumstearat zur Verbesserung der Wirkstofffreisetzung schlecht wasserlöslicher Arzneimittel untersucht, was für die Verbesserung der Bioverfügbarkeit von Arzneimitteln entscheidend ist (Tay et al., 2012).
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Dieser Artikel | |||
|---|---|---|---|
| description ≥99% | description ≥98.0% (GC) | description ≥99% | description ≥95% (capillary GC) |
| assay ≥99% | assay ≥98.0% (GC) | assay ≥99% | assay ≥95% (capillary GC) |
| biological source plant (vegetable) | biological source synthetic | biological source synthetic (organic) | biological source Olea europaea |
| functional group ester | functional group ester | functional group ester | functional group ester |
| shipped in ambient | shipped in ambient | shipped in ambient | shipped in ambient |
| form powder | form powder | form powder | form powder |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. −20°C | storage temp. −20°C |
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Lagerklasse
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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How can I determine the shelf life / expiration / retest date of this product?
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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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