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S9390

Sigma-Aldrich

Phosphate de sodium dibasic heptahydraté

ACS reagent, 98.0-102.0%

Synonyme(s) :

Hydrogénophosphate de disodium heptahydraté, Phosphate disodique

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About This Item

Formule linéaire :
Na2HPO4 · 7H2O
Numéro CAS:
7782-85-6
Poids moléculaire :
268.07
Numéro CE :
237-707-0
Numéro MDL:
MFCD00149180
Code UNSPSC :
12352302
ID de substance PubChem :
329824623
Nomenclature NACRES :
NA.21

Qualité

ACS reagent

Niveau de qualité

200

Densité de vapeur

4.9 (vs air)

Pureté

98.0-102.0%

Forme

powder

Impuretés

≤0.005% Insoluble matter

pH

8.7-9.3 (25 °C, 5% in solution)

Densité

1.68 g/mL at 25 °C (lit.)

Traces d'anions

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.005%

Traces de cations

Fe: ≤0.001%
heavy metals: ≤0.001% (by ICP)

Chaîne SMILES 

O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O

InChI

1S/2Na.H3O4P.7H2O/c;;1-5(2,3)4;;;;;;;/h;;(H3,1,2,3,4);7*1H2/q2*+1;;;;;;;;/p-2

Clé InChI

PYLIXCKOHOHGKQ-UHFFFAOYSA-L

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Description générale

Sodium phosphate dibasic heptahydrate is a hydrated form of disodium phosphate (DSP) or disodium hydrogen orthophosphate. DSP is widely used as a pH regulator and saline laxative.

Application

A mixture of sodium phosphate dibasic heptahydrate, potassium phosphate monobasic, and NaCl in deionized water is used for the preparation of phosphate-buffered saline (PBS, pH 7.4). PBS is used as a buffer solution in biological research to keep the pH constant.

Code de la classe de stockage

13 - Non Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Irina Petrova et al.
Scientific reports, 9(1), 8745-8745 (2019-06-21)
Circulating cancer markers are metabolic products found in body fluids of cancer patients, which are specific for a certain type of malignant tumors. Cancer marker detection plays a key role in cancer diagnosis, treatment, and disease monitoring. The growing need
Christian M Schürch et al.
Cell, 182(5), 1341-1359 (2020-08-09)
Antitumoral immunity requires organized, spatially nuanced interactions between components of the immune tumor microenvironment (iTME). Understanding this coordinated behavior in effective versus ineffective tumor control will advance immunotherapies. We re-engineered co-detection by indexing (CODEX) for paraffin-embedded tissue microarrays, enabling simultaneous
Francesca Vallese et al.
Nature communications, 11(1), 6069-6069 (2020-11-29)
Membrane contact sites between virtually any known organelle have been documented and, in the last decades, their study received momentum due to their importance for fundamental activities of the cell and for the subtle comprehension of many human diseases. The
Sebastian Baumann et al.
Science advances, 6(11), eaaz1588-eaaz1588 (2020-03-24)
Through the asymmetric distribution of messenger RNAs (mRNAs), cells spatially regulate gene expression to create cytoplasmic domains with specialized functions. In neurons, mRNA localization is required for essential processes such as cell polarization, migration, and synaptic plasticity underlying long-term memory
Ziyi Yin et al.
Autophagy, 16(5), 900-916 (2019-07-18)
Cells are faced with various stresses during their growth and development, and autophagy is a degradative process in which cells can break down their own components to recycle macromolecules and provide energy under these stresses. For pathogenic fungi that utilize
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