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
L4129
L-α-Lysophosphatidylcholine from egg yolk
≥99%, Type I, powder
Synonym(s):
1-Acyl-sn-glycero-3-phosphocholine, L-α-Lysolecithin
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
25 mg | Check Cart for Availability | $75.80 |
100 mg | Check Cart for Availability | $222.00 |
500 mg | Check Cart for Availability | $670.00 |
1 g | Check Cart for Availability | $1,210.00 |
About This Item
biological source
egg yolk
Quality Segment
description
zwitterionic
type
Type I
assay
≥99%
form
powder
color
white
functional group
phospholipid
lipid type
phosphoglycerides
shipped in
ambient
storage temp.
−20°C
Application
- as a surfactant
- as a media supplement and in Staphylococcus aureus inhibition assay in dermatitis
- as a demyelinating agent for nerve
- as a component in sperm nuclei preparation buffer
Biochem/physiol Actions
Preparation Note
Analysis Note
1 of 1
This Item | |||
|---|---|---|---|
| description ≥99%, Type I, powder | description ≥99%, lyophilized powder | description United States Pharmacopeia (USP) Reference Standard | description egg yolk, ≥99.0% (TLC) |
| form powder | form lyophilized powder | form - | form powder or solid |
| assay ≥99% | assay ≥99% | assay - | assay ≥99.0% (TLC) |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. −20°C |
| description zwitterionic | description zwitterionic | description - | description zwitterionic |
| biological source egg yolk | biological source soybean | biological source - | biological source egg yolk |
| Quality Level 200 | Quality Level 200 | Quality Level - | Quality Level - |
Storage Class
11 - Combustible Solids
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
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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