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S0751 Sigma-Aldrich

Sodium phosphate monobasic

ReagentPlus®, ≥99.0%

Synonym: Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate




1 kg in poly bottle

100, 500 g in poly bottle

3 kg in poly drum

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Other Notes

Go to Redi-Dri Product Listing RDD007

Price and Availability

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Safety & Documentation

Safety Information

WGK Germany 


Certificate of Analysis

Certificate of Origin

Protocols & Articles


Enzymatic Assay Kits for Nutrients

Enzymes have found widespread use as analytical tools in food, biochemical and pharmaceutical industries. Because they provide specific, reproducible, sensitive and rapid measurements, they are ideal...
Andrea Felgner
AnalytiX Volume 7 Article 4
Keywords: Absorption, Catalysis, Centrifugation, Filtration, Industries, Metabolism, Nucleic acid denaturation, Oxidations, Pharmaceutical, Reductions, Sample preparations, Solvents

Enzymatic Food Analysis

Enzymatic methods for food analysis are highly specific and offer considerable time and cost savings over other methods, especially from the sample preparation standpoint. Sigma-Aldrich offers a wide...
Jvo Siegrist
Product Manager Microbiology ivo.siegrist@sial.com, AnalytiX Volume 9 Article 2
Keywords: Absorption, Clinical, Degradations, Diabetes, Enzyme activity, Food Analysis, Nutrition, Obesity, Sample preparations


Enzymatic Assay of Choloylglycine Hydrolase

1. OBJECTIVE To standardize a procedure for the determination of the enzymatic assay of choloylglycine hydrolase.
Keywords: Enzyme activity

Enzymatic Assay of Hyaluronidase (

The turbidimetric determination (% Transmittance at 600 nm, Light path = 1 cm) is based on the following reaction:
Keywords: Extinction coefficient

Enzymatic Assay of Trypsin Inhibitor

2. SCOPE This procedure applies to all products that have a specification for Trypsin Inhibition at Sigma-Aldrich, St. Louis.

Enzymatic Assay of Trypsinogen

1. OBJECTIVE To standardize a procedure for the determination of the enzymatic assay of trypsinogen.
Keywords: Enzyme activity, Extinction coefficient

Enzymatic Assay of Urease from Jack Beans

1. OBJECTIVE To standardize a procedure for the enzymatic assay of Urease, from Jack Beans.
Keywords: Indicators, Sonication, Titrations

Enzymatic Assay of α-AMYLASE (EC

1. OBJECTIVE To standardize a procedure for determining the enzymatic activity of α-Amylase.
Keywords: Enzyme activity, Enzymology

Procedure for Enzymatic Assay of Trypsin (EC

This procedure is for products with a specification for Trypsin activity using Nα-Benzoyl-L-arginine ethyl ester (BAEE) as a substrate. The procedure is a continuous spectrophotometric rate determina...

Peer-Reviewed Papers


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Accuracy of automatic detection of small-bowel mucosa by second-generation colon capsule endoscopy. Adler S, Hassan C, Metzger Y, et al. Gastrointest. Endosc. 76(6), 1170-4, (2012)


Determination of monosaccharides derivatized with 2-aminobenzoic Acid by capillary electrophoresis. Abo M, He LP, Sato K, et al. Methods Mol. Biol. 984, 45-50, (2013)


Colonoscopy preperations. Med. Lett. Drugs Ther. 55(1408), 6, (2013)


[Bowel preparation for colonoscopy: comparative study using Boston Bowel Preparation Scale]. Coghlan E, Laferrere L, Ayunta H, et al. Acta Gastroenterol. Latinoam. 42(3), 186-92, (2012)


Preparation of a partially calcified gelatin membrane as a model for a soft-to-hard tissue interface. Aviv-Gavriel M, Garti N, and Füredi-Milhofer H Langmuir 29(2), 683-9, (2013)


Effect of repeated sodium phosphate loading on cycling time-trial performance and VO2peak. Brewer CP, Dawson B, Wallman KE, et al. Int. J. Sport Nutr. Exerc. Metab. 23(2), 187-94, (2013)


Rheological behavior of xanthan gum solution related to shear thinning fluid delivery for subsurface remediation. Zhong L, Oostrom M, Truex MJ, et al. J. Hazard. Mater. 244-245, 160-70, (2013)


Characterization of the interaction between chitosan and inorganic sodium phosphates by means of rheological and optical microscopy studies. Casettari L, Cespi M, Palmieri GF, et al. Carbohydr. Polym. 91(2), 597-602, (2013)


Consensus guidelines for the safe prescription and administration of oral bowel-cleansing agents. Connor A, Tolan D, Hughes S, et al. Gut 61(11), 1525-32, (2012)


Overloading study of basic compounds with a positively charged C18 column in liquid chromatography. Wang C, Guo Z, Long Z, et al. J. Chromatogr. A 1281, 60-6, (2013)


Meta-analysis: efficacy of small bowel preparation for small bowel video capsule endoscopy. Belsey J, Crosta C, Epstein O, et al. Curr. Med. Res. Opin. 28(12), 1883-90, (2012)


Effects of decontamination at varying contamination levels of Campylobacter jejuni on broiler meat. Boysen L, Wechter NS, and Rosenquist H Poult. Sci. 92(5), 1425-9, (2013)


Separation and determination of chiral composition in penicillamine tablets by capillary electrophoresis in a broad pH range. Song L, Guo Z, and Chen Y Electrophoresis 33(13), 2056-63, (2012)


Separation of fluorescently labeled phosphoinositides and sphingolipids by capillary electrophoresis. Wang K, Jiang D, Sims CE, et al. J. Chromatogr. B. Analyt. Technol. Biomed. Life Sci. 907, 79-86, (2012)


A validated bowel-preparation tolerability questionnaire and assessment of three commonly used bowel-cleansing agents. Lawrance IC, Willert RP, and Murray K Dig. Dis. Sci. 58(4), 926-35, (2013)


Determination of hydroxy acids in cosmetics by chemometric experimental design and cyclodextrin-modified capillary electrophoresis. Liu PY, Lin YH, Feng CH, et al. Electrophoresis 33(19-20), 3079-86, (2012)


Behaviour of co-inoculated pathogenic and spoilage bacteria on poultry following several decontamination treatments. Alonso-Hernando A, Capita R, and Alonso-Calleja C Int. J. Food Microbiol. 159(2), 152-9, (2012)


Intra-operatively obtained human tissue: protocols and techniques for the study of neural stem cells. Chaichana, KL., et al. J. Neurosci. Methods 180(1), 116-125, (2009)


Quartz crystal microbalance analysis of DNA-templated calcium phosphate mineralization. Ngourn SC, Butts HA, Petty AR, et al. Langmuir 28(33), 12151-8, (2012)


Severe hyperphosphatemia after administration of sodium-phosphate containing laxatives in children: case series and systematic review of literature. Ladenhauf HN, Stundner O, Spreitzhofer F, et al. Pediatr. Surg. Int. 28(8), 805-14, (2012)


Decontamination treatments can increase the prevalence of resistance to antibiotics of Escherichia coli naturally present on poultry. Capita R, Alvarez-Fernández E, Fernández-Buelta E, et al. Food Microbiol. 34(1), 112-7, (2013)


Response surface modeling to predict fluid loss from beef strip loins and steaks injected with salt and phosphate with or without a dehydrated beef protein water binding adjunct. Lowder AC, Goad CL, Lou X, et al. Meat Science 94(1), 9-18, (2013)


Electrolyte imbalances and nephrocalcinosis in acute phosphate poisoning on chronic type 1 renal tubular acidosis due to Sjögren's syndrome. Cho SG, Yi JH, Han SW, et al. J. Korean Med. Sci. 28(2), 336-9, (2013)


Capillary electrophoresis with field-amplified sample stacking for rapid and sensitive determination of sulfadiazine and sulfamethoxazole. Li Y, Cui Y, Jia B, et al. Pharmazie 67(9), 768-73, (2012)


A puzzling case of phospho-soda-induced hypocalcemia in a patient with multiple endocrine neoplasia type 1-associated primary hyperparathyroidism. Ozveren A, Akinci B, Makay O, et al. Intern. Med. 51(22), 3145-9, (2012)


[Colokit(®) preparation (sodium phosphate) induced erosive gastritis]. Schir E, Barbouy-des-Courières S, Plottin F, et al. Therapie. 67(5), 477-9, (2012)


Fatal electrolyte abnormalities following enema administration. Szoke D, Dolci A, Genderini A, et al. Clin. Chem. 58(11), 1515-8, (2012)


Merck 14,8660

Fieser 1,395

Corp MSDS 1 (2), 3152:B / Sax 6, 2425

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