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
75890
α-Ketoglutaric acid
99.0-101.0% (T)
Synonym(s):
alpha-Ketoglutarate, alpha-Ketoglutaric acid, 2-Oxoglutaric acid, 2-Oxopentanedioic acid
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 25 g | Check Cart for Availability | $48.30 | |
| 100 g | Check Cart for Availability | $115.00 | |
| 500 g | Check Cart for Availability | $284.00 |
About This Item
Quality Segment
assay
99.0-101.0% (T)
form
crystals
mp
114-118 °C
solubility
H2O: 1 g/10 mL, clear to slightly hazy, colorless to almost colorless
storage temp.
2-8°C
SMILES string
OC(=O)CCC(=O)C(O)=O
InChI
1S/C5H6O5/c6-3(5(9)10)1-2-4(7)8/h1-2H2,(H,7,8)(H,9,10)
InChI key
KPGXRSRHYNQIFN-UHFFFAOYSA-N
General description
Application
Other Notes
1 of 1
This Item | |||
|---|---|---|---|
| assay 99.0-101.0% (T) | assay ≥98.5% (NaOH, titration) | assay ≥98.5% NaOH basis (titration) | assay 99.0-101.0% (T) |
| solubility H2O: 1 g/10 mL, clear to slightly hazy, colorless to almost colorless | solubility water: 100 mg/mL, clear to slightly hazy, colorless to faintly yellow | solubility water: 100 mg/mL, clear to slightly hazy, colorless to almost colorless | solubility - |
| Quality Level 300 | Quality Level 200 | Quality Level 200 | Quality Level - |
| mp 114-118 °C | mp - | mp - | mp - |
| form crystals | form powder | form powder or crystals | form - |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C |
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signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1
Storage Class
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 75890-500G | 04061832916866 |
| 75890-25G | 04061832916859 |
| 75890-100G | 04061832916842 |
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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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