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
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 100 g | Check Cart for Availability | CHF 68.50 | |
| 500 g | Check Cart for Availability | CHF 199.00 | |
| 1 kg | Check Cart for Availability | CHF 349.00 | |
| 5 kg | Check Cart for Availability | CHF 1’360.00 |
About This Item
grade
Molecular Biology
Quality Level
assay
≥99.0%
form
powder
technique(s)
affinity binding assay: suitable, protein purification: suitable
impurities
≤0.005% Insolubles
pH
5.0-6 (25 °C, 132 g/L)
mp
>280 °C (dec.) (lit.)
solubility
H2O: 0.667 g/mL
density
1.77 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤5 ppm
cation traces
Cu: ≤5 ppm, Fe: ≤5 ppm, Zn: ≤5 ppm, heavy metals (as Pb): ≤2 ppm
absorption
≤0.025 at 280 at 1 M, ≤0.03 at 260 at 1 M
suitability
suitable for flow cytometry, suitable for molecular biology
application(s)
advanced drug delivery
metabolomics
microbiology
foreign activity
DNase, RNase, and protease, none detected
SMILES string
N.N.OS(O)(=O)=O
InChI
1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
InChI key
BFNBIHQBYMNNAN-UHFFFAOYSA-N
General description
Application
Features and Benefits
- Heavy metals (as Pb): ≤2 ppm
- Free from DNase, RNase, and protease
Other Notes
1 of 1
This Item | |||
|---|---|---|---|
| form powder | form crystalline powder | form solid | form crystals |
| assay ≥99.0% | assay - | assay - | assay ≥99% |
| solubility H2O: 0.667 g/mL | solubility - | solubility 754-764 g/L | solubility - |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 200 |
| grade Molecular Biology | grade reagent grade | grade - | grade ACS reagent, puriss. p.a. |
| pH 5.0-6 (25 °C, 132 g/L) | pH - | pH 5 (100 g/L in H2O) | pH 5-6 (25 °C, 5%) |
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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Related Content
Product Information Sheet
Global Trade Item Number
| SKU | GTIN |
|---|---|
| A4418-1KG | 04061835542109 |
| A4418-500G | 04061835542116 |
| A4418-5KG | 04061833374474 |
| A4418-100G | 04061835542093 |
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How can I determine the shelf life / expiration / retest date of this product?
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What is the average particle size (APS) of this powder?
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The particle size is not determined for this product.
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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