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S0751

Sigma-Aldrich

Sodium phosphate monobasic

ReagentPlus®, ≥99.0%

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Synonym(s):
Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate
Linear Formula:
NaH2PO4
CAS Number:
Molecular Weight:
119.98
EC Number:
MDL number:
eCl@ss:
38070208
PubChem Substance ID:

Quality Level

product line

ReagentPlus®

Assay

≥99.0%

form

powder or crystals

technique(s)

DNA extraction: suitable
electrophoresis: suitable
immunocytochemistry: suitable

pH

4.0-4.5 (25 °C, 50 g/L in water)

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

solubility

water: 100 mg/mL, clear, colorless

application(s)

detection

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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1 of 4

This Item
S313971496S8282
vibrant-m

S0751

Sodium phosphate monobasic

-
vibrant-m

S3139

Sodium phosphate monobasic

Essential+ Grade
vibrant-m

71496

Sodium phosphate monobasic

-
vibrant-m

S8282

Sodium phosphate monobasic

Premium Grade
technique(s)

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

technique(s)

activity assay: suitable

technique(s)

-

technique(s)

-

assay

≥99.0%

assay

≥98%

assay

≥99.0% (T)

assay

≥99.0%

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

300

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 mg/mL in H2O)

pH

4.0-6.0 (20 °C, 1 M in H2O)

application(s)

detection

application(s)

diagnostic assay manufacturing

application(s)

sample preparation

application(s)

-

General description

Sodium phosphate monobasic acts as an acidulant in laxatives and effervescent powders. It is used in beverages, cheese and soft drink formulations.

Application

Sodium phosphate monobasic has been used:
  • as a reagent for virus transfection and fiber implantation in mouse
  • in phosphate buffer for immunocytochemistry and to detect individual catalase activity by PAGE (polyacrylamide gel electrophoresis)
  • as a buffer for cycling assay
  • in automated DNA extraction method
  • as a chemical in artificial cerebro-spinal fluid (aCSF) solution for the preparation of brainstem-spinal cord from rats

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Articles

A complete SEC-UV workflow for the characterization of mAb monomers, aggregates, and fragments using Zenix® and Zenix®-C SEC columns, including system suitability testing and forced pH and temperature stress studies.

Protocols

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Follow our procedure for the determination of alpha-Amylase activity. This enzymatic assay of a-Amylase guides you through the entire process and necessary calculations.

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