Unless otherwise stated, this product is intended for research use only. It is not suitable for any other purpose, which includes, but is not limited to, unauthorized commercial use, in vitro diagnostic use, or therapeutic use in humans or animals.
A92902
L-Ascorbic acid
99%
Synonym(s):
L-Threoascorbic acid, Antiscorbutic factor, Vitamin C
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| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 25 g | Available to ship TODAYfromMILWAUKEE | $33.50 | |
| 100 g | Available to ship TODAYfromMILWAUKEE | $48.00 | |
| 500 g | Available to ship TODAYfromMILWAUKEE | $126.00 | |
| 2 kg | Available to ship TODAYfromMILWAUKEE | $380.00 |
About This Item
Empirical Formula (Hill Notation):
C6H8O6
CAS Number:
Molecular Weight:
176.12
UNSPSC Code:
12352205
NACRES:
NA.21
PubChem Substance ID:
EC Number:
200-066-2
Beilstein/REAXYS Number:
84272
MDL number:
$33.50
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biological source
synthetic
Quality Level
assay
99%
form
powder
optical activity
[α]25/D 19.0 to 23.0°, c = 10% in H2O
color
white to off-white
pH
1.0-2.5 (25 °C, 176 g/L in water)
mp
190-194 °C (dec.)
solubility
water: soluble 176 g/L at 20 °C
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
L-ascorbic acid is used as a food additive, browning inhibitor, flavor stabilizer, dough modifier and color stabilizer. Deficiency of ascorbic acid is associated with scurvy. L-ascorbic acid stimulates immune response and is implicated in the synthesis of collagen, carnitine and neurotransmitters.
Application
L-Ascorbic acid has been used:
- as a component in osteogenic differentiation medium
- in MesenCult medium for the differentiation of bone marrow stromal cells
- as a standard for vitamin C assay
- to prevent trihalomethanes formation potential (THMFP)
Biochem/physiol Actions
Ascorbic Acid, also known as Vitamin C, is a six-carbon lactone produced by plants and some animal species but not by humans and other primates. Ascorbic acid functions as an enzymatic cofactor for multiple enzymes, serving as an electron donor for monooxygenases and dioxygenases. Ascorbic acid also functions as a powerful antioxidant, particularly in regards to reactive oxygen species.
L-Ascorbic acid (L-AA) is a widely available and water-soluble compound. L-AA has an ability to inhibit the corrosion of mild steel.
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This Item | |||
|---|---|---|---|
| biological source synthetic | biological source synthetic (Organic) | biological source synthetic | biological source - |
| assay 99% | assay ≥99.0% (RT) | assay ≥99.5% (RT) | assay ≥99.0% |
| form powder | form powder or crystals (possibly with chunks) | form powder or crystals | form crystalline |
| solubility water: soluble 176 g/L at 20 °C | solubility H2O: 50 mg/mL at 20 °C, clear, almost colorless | solubility H2O: 1 M at 20 °C, clear, colorless | solubility H2O: 0.5 M, clear, colorless |
| mp 190-194 °C (dec.) | mp 190-194 °C (dec.) | mp 190-194 °C (dec.) | mp 190-194 °C (dec.) |
| color white to off-white | color white to off-white | color white to off-white | color white to off-white |
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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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Global Trade Item Number
| SKU | GTIN |
|---|---|
| A92902-25G | 04061833401934 |
| A92902-2KG | 04061833401941 |
| A92902-100G | 04061835521579 |
| A92902-500G | 04061833401958 |
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Is the A92902 L-ascorbic acid référence of pharmaceutical grade ?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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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 validity period of this reagent?
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This product is not assigned an expiration date or recommended retest date. Customers should routinely inspect products with no expiration date or recommended retest date to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment.
For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.
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