Sodium dihydrogen phosphate monohydrate - Ph.Eur., Suitable for Analysis, ACS, Premium pure , CAS No.10049-21-5

CAS: 10049-21-5 Cat. No.: S431210 Molecular Weight: 137.99 EC Number: 600-102-0 PubChem CID: 516949
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GRADE & PURITY Ph.Eur. ? European Pharmacopoeia grade — conforms to Ph.Eur. monographs across EU member states. Use for pharmaceutical work needing European compendial compliance. Suitable for Analysis ? Suitable-for-analysis grade — purity adequate for general analytical procedures. Use as a dependable analytical reagent across routine methods. ACS ? ACS grade — meets American Chemical Society specifications, the analytical benchmark in the US. Use for analytical and QC work needing ACS-defined purity. Premium pure ? Premium pure grade combining high purity with premium QC. Use for high-stakes work needing both cleanliness and lot consistency.
Synonyms
AKOS015913977 | AKOS026674125 | SODIUM PHOSPHATE, MONOBASIC, MONOHYDRATE COMPONENT OF VISICOL | sodium dihydrogen phosphate hydrate | Sodium phosphate monobasic monohydrate, puriss. p.a., ACS reagent, >=99.0% (T) | Sodium Phosphate, Monobasic, Monohydrate
Storage
Room temperature,Argon charged
Shipped In
Normal
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Size
Status
Price
Qty
100g
S431210-100g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$37.90
500g
S431210-500g
2
$119.90
Enter a quantity for the sizes you want to add.
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Why this grade

Ph.Eur., Suitable for Analysis, ACS, Premium pure ACS,Ph.Eur.,Premium pure,Suitable for Analysis for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature,Argon charged Ships Normal Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 36 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Application:

Sodium phosphate monobasic monohydrate may be used in the following studies:
As a mobile phase in HPLC studies;
For the dissolution of BSA (Bovine serum albumin);
Preparation of buffer solutions.

Specifications

Synonyms
AKOS015913977 | AKOS026674125 | SODIUM PHOSPHATE, MONOBASIC, MONOHYDRATE COMPONENT OF VISICOL | sodium dihydrogen phosphate hydrate | Sodium phosphate monobasic monohydrate, puriss. p.a., ACS reagent, >=99.0% (T) | Sodium Phosphate, Monobasic, Monohydrate
Specifications & Purity
Ph.Eur., Suitable for Analysis, ACS, Premium pure
Storage
Room temperature, Argon charged
Shipped In
Normal
Grade
ACS, Ph.Eur., Premium pure, Suitable for Analysis
Names and Identifiers
Canonical SmilesO.OP(=O)(O)[O-].[Na+]
IUPAC Namesodium;dihydrogen phosphate;hydrate
InChIKeyBBMHARZCALWXSL-UHFFFAOYSA-M
INCHI1S/Na.H3O4P.H2O/c;1-5(2,3)4;/h;(H3,1,2,3,4);1H2/q+1;;/p-1
Isomeric SMILES O.OP(=O)(O)[O-].[Na+]
WGK Germany 1
PubChem CID 516949
Molecular Weight 137.99

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomInorganic compounds
SuperclassMixed metal/non-metal compounds
ClassAlkali metal oxoanionic compounds
SubclassAlkali metal phosphates
Intermediate Tree Nodes Not available
Direct ParentAlkali metal phosphates
Alternative Parents Inorganic sodium salts  Inorganic oxides  
Molecular FrameworkNot available
Substituents Alkali metal phosphate - Inorganic sodium salt - Inorganic oxide - Inorganic salt
DescriptionThis compound belongs to the class of inorganic compounds known as alkali metal phosphates. These are inorganic compounds in which the largest oxoanion is phosphate, and in which the heaviest atom not in an oxoanion is an alkali metal.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

17 results found

Lot NumberCertificate TypeDateItem
D2622456Certificate of AnalysisMar 26, 2026 S431210
D2622462Certificate of AnalysisMar 26, 2026 S431210
D2622465Certificate of AnalysisMar 26, 2026 S431210
I2516534Certificate of AnalysisAug 28, 2025 S431210
I2516533Certificate of AnalysisAug 28, 2025 S431210
E2516529Certificate of AnalysisApr 26, 2025 S431210
E2516530Certificate of AnalysisApr 26, 2025 S431210
H2430448Certificate of AnalysisJun 27, 2024 S431210
H2430447Certificate of AnalysisJun 27, 2024 S431210
E2316752Certificate of AnalysisApr 27, 2023 S431210
I2314087Certificate of AnalysisApr 27, 2023 S431210
F2418038Certificate of AnalysisApr 27, 2023 S431210
B2426122Certificate of AnalysisApr 27, 2023 S431210
E2316737Certificate of AnalysisApr 27, 2023 S431210
E2316725Certificate of AnalysisApr 27, 2023 S431210
E2316722Certificate of AnalysisApr 27, 2023 S431210
C2420037Certificate of AnalysisApr 27, 2023 S431210

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Chemical and Physical Properties
Solubility850g/L
SensitivityMoisture sensitive
Melt Point(°C)100 °C
Molecular Weight137.990 g/mol
XLogP3
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count5
Rotatable Bond Count0
Exact Mass137.969 Da
Monoisotopic Mass137.969 Da
Topological Polar Surface Area81.600 Ų
Heavy Atom Count7
Formal Charge0
Complexity61.900
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count3
Documents & Articles
Citations of This Product
References
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