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
A0278
L-Ascorbic acid
reagent grade
Synonym(s):
L-Threoascorbic acid, Antiscorbutic factor, Vitamin C
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| Size/SKU | Availability | Price |
|---|
About This Item
biological source
synthetic
Quality Segment
grade
reagent grade
assay
≥98% (with Iodine, titration)
form
powder
technique(s)
HPLC: suitable
color
white to light yellow
pH
1.0-2.5 (25 °C, 176 g/L in water)
mp
190-194 °C (dec.)
solubility
water: soluble 50 mg/mL
SMILES string
OC([C@]([C@@H](O)CO)([H])O1)=C(O)C1=O
InChI
1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1
InChI key
CIWBSHSKHKDKBQ-JLAZNSOCSA-N
Gene Information
human ... SLC23A2(9962)
General description
Application
Biochem/physiol Actions
Disclaimer
1 of 1
This Item | |||
|---|---|---|---|
| grade reagent grade | grade - | grade - | grade - |
| assay ≥98% (with Iodine, titration) | assay ≥99.0% | assay 99.0-100.5% | assay 99.0-100.5% |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| form powder | form crystalline | form solid | form solid |
| pH 1.0-2.5 (25 °C, 176 g/L in water) | pH 1.0-2.5 (25 °C, 176 g/L in water) | pH 1.0-2.5 (25 °C, 176 g/L in water) | pH 1.0-2.5 (25 °C, 176 g/L in water) |
| solubility water: soluble 50 mg/mL | solubility H2O: 0.5 M, clear, colorless | solubility water: soluble 176 g/L at 20 °C | solubility water: soluble 176 g/L at 20 °C |
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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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