Sodium phosphate dibasic - for electrophoresis, ≥99% , CAS No.7558-79-4

CAS: 7558-79-4 Cat. No.: S118442 Formula: Na2HPO4 Molecular Weight: 141.96 EC Number: 231-448-7
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GRADE & PURITY Suitable for electrophoresis ? Electrophoresis grade — low ionic/UV impurities for clean gel runs. Use in agarose/PAGE electrophoresis where impurities distort bands. ≥99%
Synonyms
Disodium hydrogen orthophosphate | Disodium phosphoric acid | FEMA No. 2398 | OSMOPREP COMPONENT SODIUM PHOSPHATE, DIBASIC ANHYDROUS | Sodium phosphate, dibasic | AKOS015902440 | Disodium Hydrogen Phosphate Submicron | Fleet enema | DTXSID1026039 | Disodi
Storage
Room temperature
Shipped In
Normal
★
Size
USA
Germany (EU)*
Price
Qty
500g
S118442-500g
3 In stock
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$145.90

$170.90
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Why this grade

for electrophoresis, ≥99% Suitable for electrophoresis for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature 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.

📚

Literature proof

Cited in 1194 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Disodium hydrogen orthophosphate | Disodium phosphoric acid | FEMA No. 2398 | OSMOPREP COMPONENT SODIUM PHOSPHATE, DIBASIC ANHYDROUS | Sodium phosphate, dibasic | AKOS015902440 | Disodium Hydrogen Phosphate Submicron | Fleet enema | DTXSID1026039 | Disodi
Specifications & Purity
for electrophoresis, ≥99%
Storage
Room temperature
Shipped In
Normal
Grade
Suitable for electrophoresis
Purity
≥99%
Names and Identifiers
Pubchem Sid508815714
Canonical SmilesOP(=O)([O-])[O-].[Na+].[Na+]
IUPAC Namedisodium;hydrogen phosphate
InChIKeyBNIILDVGGAEEIG-UHFFFAOYSA-L
INCHI1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
Isomeric SMILES OP(=O)([O-])[O-].[Na+].[Na+]
Alternate CAS 7778-77-0
Molecular Weight 141.96
Reaxy-Rn 11343459
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=11343459&ln=

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.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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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 sodium phosphate
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.

5 results found

Lot NumberCertificate TypeDateItem
A2411783Certificate of AnalysisJan 17, 2024 S118442
A2411809Certificate of AnalysisJan 17, 2024 S118442
H2315097Certificate of AnalysisAug 18, 2023 S118442
B2328325Certificate of AnalysisMar 06, 2023 S118442
G2216517Certificate of AnalysisJul 20, 2022 S118442
Chemical and Physical Properties
SensitivityMoisture sensitive.
Molecular Weight141.959 g/mol
XLogP3
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count4
Rotatable Bond Count0
Exact Mass141.941 Da
Monoisotopic Mass141.941 Da
Topological Polar Surface Area83.400 Ų
Heavy Atom Count7
Formal Charge0
Complexity46.500
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
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Citations of This Product
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Reviews

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