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
S2554
Sodium phosphate monobasic
meets USP testing specifications, anhydrous
Synonym(s):
Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
100 g | Estimated to ship onJuly 27, 2026fromMILWAUKEE | $82.80 |
500 g | Estimated to ship onJuly 27, 2026fromMILWAUKEE | $281.00 |
1 kg | Estimated to ship onJuly 27, 2026fromMILWAUKEE | $503.00 |
3 kg | Estimated to ship onJuly 27, 2026fromMILWAUKEE | $1,260.00 |
About This Item
$82.80
Estimated to ship onJuly 27, 2026Details
grade
anhydrous
Quality Segment
agency
USP/NF, meets USP testing specifications
assay
98.0-103.0% (T)
form
powder
pH
4.1-4.5
application(s)
pharmaceutical (small molecule)
SMILES string
[Na+].OP(O)([O-])=O
InChI
1S/Na.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
InChI key
AJPJDKMHJJGVTQ-UHFFFAOYSA-M
1 of 1
This Item | |||
|---|---|---|---|
| description meets USP testing specifications, anhydrous | description BioReagent, Molecular Biology, anhydrous, ≥98% | description BioPerformance Certified, suitable for cell culture, suitable for insect cell culture, suitable for plant cell culture, ≥99.0% (titration) | description anhydrous, free-flowing, Redi-Dri™, ≥99.0% |
| grade anhydrous | grade Molecular Biology, anhydrous | grade BioPerformance Certified | grade anhydrous |
| assay 98.0-103.0% (T) | assay ≥98% | assay ≥99.0% (titration) | assay ≥99.0% |
| Quality Level 300 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| form powder | form solid | form powder | form powder |
| application(s) pharmaceutical (small molecule) | application(s) diagnostic assay manufacturing | application(s) - | application(s) PFAS testing |
| pH 4.1-4.5 | pH 4.0-4.5 (25 °C, 50 g/L in water) | pH 4.0-4.5 (25 °C, 50 g/L in water) | pH 4.0-4.5 (25 °C, 50 g/L in water) |
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Storage Class
11 - Combustible Solids
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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