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
T8941
L-Tryptophan
99.0-101.0%, suitable for cell culture, BioXtra, non-animal source
Synonym(s):
(S)-2-Amino-3-(3-indolyl)propionic acid, L-α-Amino-3-indolepropionic acid
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
Product Name
L-Tryptophan, from non-animal source, meets EP, JP, USP testing specifications, suitable for cell culture, 99.0-101.0%
biological source
non-animal source
Quality Level
agency
USP/NF, meets EP testing specifications, meets JP testing specifications, meets USP testing specifications
product line
BioXtra
assay
99.0-101.0%
form
powder
quality
meets EP, JP, USP testing specifications
technique(s)
cell culture | mammalian: suitable
impurities
endotoxin, tested
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This Item | |||
|---|---|---|---|
| form powder | form - | form powder | form powder or crystals |
| technique(s) cell culture | mammalian: suitable | technique(s) - | technique(s) - | technique(s) - |
| assay 99.0-101.0% | assay - | assay ≥98% (HPLC) | assay ≥99.5% (NT) |
| product line BioXtra | product line - | product line - | product line BioUltra |
| mp 280-285 °C (dec.) (lit.) | mp 280-285 °C (dec.) (lit.) | mp 280-285 °C (dec.) (lit.) | mp 280-285 °C (dec.) (lit.) |
| color white to yellow | color - | color white to off-white | color white |
Application
Biochem/physiol Actions
Other Notes
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Storage Class
11 - Combustible Solids
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transformation efficiency
Global Trade Item Number
| SKU | GTIN |
|---|---|
| T8941-100G | 04061837379871 |
| T8941-1KG | 04061837379895 |
| T8941-10MG | 04061837379888 |
| T8941-25G | 04061837379901 |
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How can I determine the shelf life / expiration / retest date of this product?
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Which is the presnetation of the 10 mg Tryptophan? polyethilen or glass bottles
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This product is supplied as a crystalline powder. The 10 mg size is packaged in a 2 mL amber glass bottle.
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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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