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
P9255
Pyridoxal 5′-phosphate hydrate
≥98%
Synonym(s):
Pyridoxal phosphate, 3-Hydroxy-2-methyl-5-([phosphonooxy]methyl)-4-pyridinecarboxaldehyde, Codecarboxylase, PLP, Pyridoxal 5-phosphate
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 1 g | Available to ship TODAYfromMILWAUKEE | $67.40 | |
| 5 g | Available to ship TODAYfromMILWAUKEE | $242.00 | |
| 25 g | Available to ship TODAYfromMILWAUKEE | $834.00 |
About This Item
biological source
synthetic (organic)
Quality Level
assay
≥98%
form
powder
technique(s)
HPLC: suitable
color
beige, off-white to yellow
mp
140-143 °C
storage temp.
−20°C
SMILES string
CC1=NC=C(COP(O)(O)=O)C(C([H])=O)=C1O
InChI
1S/C8H10NO6P/c1-5-8(11)7(3-10)6(2-9-5)4-15-16(12,13)14/h2-3,11H,4H2,1H3,(H2,12,13,14)
InChI key
NGVDGCNFYWLIFO-UHFFFAOYSA-N
General description
Application
- as a reference standard to quantify vitamin B6 in feed and digesta samples using high performance liquid chromatography (HPLC)
- in D-amino acid transaminase reaction(10)
- as a cofactor for L-glutamic acid decarboxylase
Biochem/physiol Actions
1 of 1
This Item | |||
|---|---|---|---|
| technique(s) HPLC: suitable | technique(s) HPLC: suitable | technique(s) cell culture | mammalian: suitable | technique(s) enzyme immunoassay: suitable |
| biological source synthetic (organic) | biological source synthetic (organic) | biological source - | biological source synthetic |
| assay ≥98% | assay ≥99% (HPLC) | assay ≥98% | assay ≥97.0% (NT) |
| form powder | form powder | form powder | form powder |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. 2-8°C |
| color beige, off-white to yellow | color white to off-white | color off-white to yellow-brown | color white to light yellow |
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Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Articles
Serotonin is stored in cells and metabolized by MAO, influencing CNS, GI, and platelet functions.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| P9255-25G | 04061835538805 |
| P9255-1G | 04061835484072 |
| P9255-5G | 04061835548033 |
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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Is the purity 100% stated on the certificate an as is value or an anhydrous value?
1 answer-
The percentage purity reported in the Certificate of Analysis refers to the peak area corresponding to pyridoxal 5-phosphate as a percentage of the total area of all peaks present in the chromatogram during HPLC analysis. The reported value for the "Purity (HPLC)" specification does not consider water content, unlike Certified Reference Materials. However, water content is determined as a separate specification.
Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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