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
52074
Sodium phosphate monobasic
suitable for HPLC, 99.0-101.0% (T)
Synonym(s):
Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate
About This Item
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Assay
99.0-101.0% (T)
form
powder or crystals
technique(s)
HPLC: suitable
pH
4.0-4.5 (20 °C, 10% in H2O)
solubility
H2O: 0.1 g/mL at 25 °C, clear, colorless
λ
10 % in H2O
UV absorption
λ: 210 nm Amax: ≤0.1
λ: 260 nm Amax: ≤0.06
λ: 280 nm Amax: ≤0.04
λ: 320 nm Amax: ≤0.02
λ: 500 nm Amax: ≤0.02
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
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This Item | V800378 | V900060 | S3139 |
|---|---|---|---|
| assay 99.0-101.0% (T) | assay 99% | assay 99% | assay ≥98% |
| technique(s) HPLC: suitable | technique(s) HPLC: suitable | technique(s) - | technique(s) activity assay: suitable |
| form powder or crystals | form powder | form powder | form solid |
| solubility H2O: 0.1 g/mL at 25 °C, clear, colorless | solubility - | solubility - | solubility H2O: complete 100 mg/mL, clear, colorless |
| pH 4.0-4.5 (20 °C, 10% in H2O) | pH 4.0- 4.5 (25 °C, 50 g/L) | pH - | pH 4.0-4.5 (25 °C, 50 g/L in water) |
| λ 10 % in H2O | λ - | λ - | λ - |
Application
- High-performance liquid chromatography (HPLC) determination of adenosine in human synovial fluid.[1]
- Analysis of neuroendocrine tumor markers by HPLC-electrochemical detection.[2]
- Analysis of benzalkonium chloride and its homologs using HPLC/HPCE.[3]
related product
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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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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