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
33034
L-Ascorbic acid
ACS reagent grade, 99.7-100.5% (oxidimetric), solid, suitable for IR spectroscopy, puriss. p.a., reag. ISO, Ph. Eur.
Synonym(s):
L-Threoascorbic acid, Antiscorbutic factor, Vitamin C
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 100 g | Check Cart for Availability | $96.00 | |
| 250 g | Check Cart for Availability | $228.00 | |
| 6 x 100 g | Check Cart for Availability | $525.00 | |
| 1 kg | Check Cart for Availability | $599.00 | |
| 6 x 1 kg | Estimated to ship onMay 01, 2026fromMILWAUKEE | $2,380.00 |
About This Item
$96.00
Product Name
L-Ascorbic acid, puriss. p.a., ACS reagent, reag. ISO, Ph. Eur., 99.7-100.5% (oxidimetric)
biological source
synthetic
Quality Level
agency
Ph. Eur., USP/NF, reag. ISO
grade
ACS reagent, puriss. p.a.
assay
99.7-100.5% (oxidimetric)
form
solid
optical activity
[α]20/D +20.5 to +21.5°, c = 10% in H2O
technique(s)
IR spectroscopy: suitable
impurities
related substances, in accordance (HPLC), ≤0.001% heavy metals (by ICP-OES)
ign. residue
≤0.05% (as SO4)
loss
≤0.1% loss on drying, 105 °C
pH
2.1-2.6 (20 °C, 5%)
mp
190-192 °C ((decomp)) (lit.), 190-194 °C (dec.)
solubility
water: soluble 176 g/L at 20 °C
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤20 mg/kg
cation traces
As: ≤1 mg/kg, Cu: ≤5 mg/kg, Fe: ≤2 mg/kg, Pb: ≤5 mg/kg, Zn: ≤10 mg/kg
suitability
complies for appearance of solution, passes test for identity (IR)
application(s)
cell analysis
functional group
ester, hydroxyl, ketone
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
1 of 1
This Item | |||
|---|---|---|---|
| grade ACS reagent, puriss. p.a. | grade ACS reagent | grade ACS reagent, anhydrous | grade - |
| technique(s) IR spectroscopy: suitable | technique(s) HPLC: suitable | technique(s) - | technique(s) cell culture | mammalian: suitable |
| suitability complies for appearance of solution, passes test for identity (IR) | suitability - | suitability - | suitability - |
| assay 99.7-100.5% (oxidimetric) | assay ≥99% | assay ≥99% | assay ≥99.0% |
| biological source synthetic | biological source - | biological source synthetic (organic) | biological source - |
| application(s) cell analysis | application(s) - | application(s) - | application(s) - |
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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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Articles
Simultaneous LC-MS/MS determination of vitamins D₂ and D₃ in infant milk powder meeting GB 5009.296-2023 criteria for accuracy and sensitivity.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 33034-1KG | 04061826725924 |
| 33034-6X1KG | 04061826725948 |
| 33034-250G | 04061835365630 |
| 33034-6X250G | 04061826725955 |
| 33034-100G | 04061835365623 |
| 33034-6X100G | 04061826725931 |
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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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