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52074

Sodium phosphate monobasic

suitable for HPLC, 99.0-101.0% (T)

Synonym(s):

Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate

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About This Item

Linear Formula:
NaH2PO4
CAS Number:
Molecular Weight:
119.98
UNSPSC Code:
41116105
NACRES:
NB.21
MDL number:
eCl@ss:
38070208
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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

Application

Sodium phosphate monobasic may be used as a mobile phase in:
  • High-performance liquid chromatography (HPLC) determination of adenosine in human synovial fluid.
  • Analysis of neuroendocrine tumor markers by HPLC-electrochemical detection.
  • Analysis of benzalkonium chloride and its homologs using HPLC/HPCE.


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1 of 1

This Item
S8282S0751S3139
assay

99.0-101.0% (T)

assay

≥99.0%

assay

≥99.0%

assay

≥98%

technique(s)

HPLC: suitable

technique(s)

-

technique(s)

DNA extraction: suitable, electrophoresis: suitable, immunocytochemistry: suitable

technique(s)

activity assay: suitable

form

powder or crystals

form

powder

form

powder or crystals

form

solid

solubility

H2O: 0.1 g/mL at 25 °C, clear, colorless

solubility

H2O: 1 M, clear, colorless

solubility

water: 100 mg/mL, clear, colorless

solubility

H2O: complete 100 mg/mL, clear, colorless

pH

4.0-4.5 (20 °C, 10% in H2O)

pH

4.0-6.0 (20 °C, 1 M in H2O)

pH

4.0-4.5 (25 °C, 50 g/L in water)

pH

4.0-4.5 (25 °C, 50 g/L in water)

UV absorption

λ: 210 nm Amax: ≤0.1, λ: 280 nm Amax: ≤0.04, λ: 500 nm Amax: ≤0.02, λ: 260 nm Amax: ≤0.06, λ: 320 nm Amax: ≤0.02

UV absorption

-

UV absorption

-

UV absorption

-


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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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Simultaneous analysis of neuroendocrine tumor markers by HPLC-electrochemical detection
Manickum, T
Journal of Chromatography. B, Biomedical Sciences and Applications, 877(32), 4140-4146 (2009)
Analysis of benzalkonium chloride and its homologs: HPLC versus HPCE
Prince SJ, et al.
Journal of Pharmaceutical and Biomedical Analysis, 19(6), 877-882 (1999)
HPLC determination of adenosine in human synovial fluid
Sottofattori E, et al.
Journal of Pharmaceutical and Biomedical Analysis, 24(5-6), 1143-1146 (2001)



Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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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