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
P2126
L-Phenylalanine
≥98%
Synonym(s):
(S)-2-Amino-3-phenylpropionic acid
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$151.00
$586.00
$928.00
About This Item
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Product Name
L-Phenylalanine, reagent grade, ≥98%
assay
≥98%
form
powder or crystals
InChI key
COLNVLDHVKWLRT-QMMMGPOBSA-N
InChI
1S/C9H11NO2/c10-8(9(11)12)6-7-4-2-1-3-5-7/h1-5,8H,6,10H2,(H,11,12)/t8-/m0/s1
SMILES string
N[C@@H](Cc1ccccc1)C(O)=O
grade
reagent grade
color
white to off-white
mp
270-275 °C (dec.) (lit.)
solubility
1 M NH4OH: 50 mg/mL, clear, colorless
application(s)
detection
Quality Level
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Related Categories
1 of 4
This Item | P5482 | 78019 | W358512 |
|---|---|---|---|
| grade reagent grade | grade - | grade - | grade FG, Halal, Kosher, natural |
| form powder or crystals | form powder | form powder or crystals | form - |
| assay ≥98% | assay 98.5-101.0% | assay ≥99.0% (NT) | assay 99% |
| Quality Level 200 | Quality Level 300 | Quality Level 200 | Quality Level 400 |
| mp 270-275 °C (dec.) (lit.) | mp 270-275 °C (dec.) (lit.) | mp 270-275 °C (dec.) (lit.) | mp 270-275 °C (dec.) (lit.) |
| solubility 1 M NH4OH: 50 mg/mL, clear, colorless | solubility 1 M HCl: 50 mg/mL | solubility H2O: 0.1 M at 20 °C, clear, colorless | solubility - |
Application
Storage Class
11 - Combustible Solids
wgk
WGK 1
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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How long is Phenylalanine stable for when dissolved in water?
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The long term stability of this product in solution has not been investigated. However, this material is a component in several amino acid solutions that are stable for at least 1 year when filter sterilized and stored refrigerated at 2 - 8°C. Similar stability is expected with the individual component. Please see the link below to review the formulation sheet for these amino acid solutions:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/334/224/m7145for.pdfIn addition, the stability information available for product 5202, L-Phenylalanine, indicates that this amino acid is stable for up to 1 year when stored at -20°C. Avoid repeated freeze/thaw cycles.
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How long Phenylalanin can be stored as a powder at RT? Thank you. Erics
1 answer-
This product may be stored at room temperature in the powder form until the recommended retest date published in the lot specific Certificate of Analysis. This compound is assigned a rested date of approximately 5 years from the date of Quality Release. Please see the link below to review a sample Certificate:
https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/P2126-100G0000240439.pdfHelpful?
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