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
255564
Ácido L-ascórbico
ACS reagent grade, ≥99%, powder or chunks, crystals or granules, HPLC
Sinônimo(s):
Ácido L-treoascórbico, Fator antiescorbútico, Vitamina C
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R$ 329,00
R$ 475,00
R$ 1.579,00
Sobre este item
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Nome do produto
Ácido L-ascórbico, ACS reagent, ≥99%
InChI key
CIWBSHSKHKDKBQ-JLAZNSOCSA-N
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
SMILES string
OC([C@]([C@@H](O)CO)([H])O1)=C(O)C1=O
grade
ACS reagent
assay
≥99%
form
crystals or granules, powder or chunks
optical activity
[α]25/D +20.5 to +21.5° in H2O
technique(s)
HPLC: suitable
Quality Level
Gene Information
human ... SLC23A2(9962)
cation traces
Fe: ≤0.001%, heavy metals: ≤0.002% (by ICP-OES)
functional group
ester, hydroxyl, ketone
ign. residue
<0.1%
color
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
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Este Item | |||
|---|---|---|---|
| technique(s) HPLC: suitable, cell culture | mammalian: suitable | technique(s) gas chromatography (GC): suitable, liquid chromatography (LC): suitable | technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) - |
| grade ACS reagent | grade certified reference material | grade certified reference material, pharmaceutical secondary standard | grade ACS reagent, anhydrous |
| assay ≥99% | assay - | assay - | assay ≥99% |
| form crystals or granules, powder or chunks | form liquid | form solid | form crystals or granules, powder or chunks |
| application(s) cell analysis | application(s) clinical testing | application(s) food and beverages | application(s) - |
| solubility water: soluble 176 g/L at 20 °C | solubility - | solubility - | solubility water: soluble 176 g/L at 20 °C |
General description
Application
Other Notes
Legal Information
Classe de armazenamento
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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