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
A8625
N-Acetyl-D-glucosamine
≥99% (HPLC)
Synonym(s):
2-Acetamido-2-deoxy-D-glucose, D-GlcNAc
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
biological source
crab (red)
Quality Level
assay
≥99% (HPLC)
form
powder
technique(s)
HPLC: suitable
color
white to off-white
mp
211 °C (dec.) (lit.)
solubility
H2O: 50 mg/mL, clear to very slightly hazy (colorless to faint yellow solution)
application(s)
advanced drug delivery
storage temp.
−20°C
SMILES string
CC(=O)N[C@H]1C(O)O[C@H](CO)[C@@H](O)[C@@H]1O
InChI
1S/C8H15NO6/c1-3(11)9-5-7(13)6(12)4(2-10)15-8(5)14/h4-8,10,12-14H,2H2,1H3,(H,9,11)/t4-,5-,6-,7-,8?/m1/s1
InChI key
OVRNDRQMDRJTHS-RTRLPJTCSA-N
General description
Application
- as sugar for competitive inhibition in lectin histochemistry
- as a component in Barbour-Stonner-Kelly (BSK) medium for cultivating Borrelia burgdorferi spirochetes strains
- as a component of binding buffer to suspend Streptococcus pneumoniae strains for inhibition assay to examine the specificity of M-ficolin binding to S. pneumoniae strains
Biochem/physiol Actions
Other Notes
1 of 1
This Item | |||
|---|---|---|---|
| assay ≥99% (HPLC) | assay ≥95% (HPLC) | assay ≥95% (HPLC) | assay ≥98% (HPLC) |
| biological source crab (red) | biological source - | biological source - | biological source - |
| technique(s) HPLC: suitable | technique(s) - | technique(s) cell culture | mammalian: suitable | technique(s) - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| solubility H2O: 50 mg/mL, clear to very slightly hazy (colorless to faint yellow solution) | solubility water: 50 mg/mL, clear to cloudy, colorless to faintly yellow | solubility - | solubility water: 10 mg/mL |
| form powder | form powder | form powder | form powder |
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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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Global Trade Item Number
| SKU | GTIN |
|---|---|
| A8625-25G | 04061833400401 |
| A8625-10MG | 04061833400395 |
| A8625-5G | 04061833400418 |
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How can I determine the shelf life / expiration / retest date of this product?
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Helpful?
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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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What is the physicochemical method or principle used to determine optical rotation in this product, could you confirm that the product is released with polarimetry?
1 answer-
The method of analysis for this product is considered proprietary, however details and conditions are published in the Certificate of Analysis. See the link below for a sample CofA.
https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/A8625-5G0000185218.pdfHelpful?
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