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Potassium Rhodizonate - 90.0%(C), high purity , CAS No.13021-40-4

COA

Cas Number: 13021-40-4
Molecular Weight: 246.26
Beilstein Registry Number: 8535
MDL number: MFCD00001649
PubChem CID: 83051
PubChem SID: 488186142

In stock

Item Number

P492081

Grouped product items
SKU	Size	Availability	Price
P492081-250mg	250mg	3	$121.90
P492081-1g	1g	3	$340.90
P492081-5g	5g	4	$1,339.90

Basic Description

Synonyms	Potassium rhodizonate \| 13021-40-4 \| Rhodizonic Acid Dipotassium Salt \| Dipotassium rhodizonate \| Potassium 3,4,5,6-tetraoxocyclohex-1-ene-1,2-bis(olate) \| WZ53DGF8SB \| 5-Cyclohexene-1,2,3,4-tetrone, 5,6-dihydroxy-, dipotassium salt \| dipotassium;3,4,5,6-tetraoxocycloh
Specifications & Purity	≥90%(C)
Shipped In	Normal
Product Description	Product introduction Potassium rhodizonate (3,4,5,6-Tetraoxocyclohexene-1,2-diol dipotassium salt, Rhodizonic acid potassium salt), a benzoquinone derivative, is the potassium salt of rhodizonic acid. Its crystalline structure has been reported and it exhibits space group Fddd. Rhodizonate dianion undergoes various thermal and photochemical reactions with various oxidizing reagents in aqueous solution. Application Potassium rhodizonate is suitable reagent for the preparation of staining solution used in the rhodizonate test for the detection of lead. It is suitable reagent used in the preparation of barium, thallium, ammonium and silver salts rhodizonic acid by metathesis in aqueous solution. It may be used in the following studies: To cocrystallize plutonium and radium from urine in the plutonium and radium assay of urine. As a dye in the spectrophotometric determination of sulfate ion. To determine the acid dissociation constants of rhodizonic acid by pH potentiometric titration of potassium rhodizonate with standardized HCl. As a staining agent for plagioclase in the petrographic study.

Taxonomic Classification

Taxonomy Tree

Kingdom Organic compounds
- Superclass Organic oxygen compounds
  - Class Organooxygen compounds
    - Subclass Carbonyl compounds
      - Level5 Ketones
        Level6 Cyclic ketones
        Level7 Quinones
        Level8 Benzoquinones
        Level9 P-benzoquinones

Kingdom	Organic compounds
Superclass	Organic oxygen compounds
Class	Organooxygen compounds
Subclass	Carbonyl compounds
Intermediate Tree Nodes	Ketones - Cyclic ketones - Quinones - Benzoquinones
Direct Parent	P-benzoquinones
Alternative Parents	O-benzoquinones M-benzoquinones Phenoxides Vinylogous acids Organic potassium salts Organic oxides Hydrocarbon derivatives
Molecular Framework	Aromatic homomonocyclic compounds
Substituents	P-benzoquinone - O-benzoquinone - M-benzoquinone - Phenoxide - Benzenoid - Monocyclic benzene moiety - Vinylogous acid - Organic alkali metal salt - Organic oxide - Hydrocarbon derivative - Organic potassium salt - Organic salt - Aromatic homomonocyclic compound
Description	This compound belongs to the class of organic compounds known as p-benzoquinones. These are benzoquinones where the two C=O groups are attached at the 1- and 4-positions, respectively.
External Descriptors	Not available
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

Names and Identifiers

Pubchem Sid	488186142
IUPAC Name	dipotassium;3,4,5,6-tetraoxocyclohexene-1,2-diolate
INCHI	InChI=1S/C6H2O6.2K/c7-1-2(8)4(10)6(12)5(11)3(1)9;;/h7-8H;;/q;2*+1/p-2
InChIKey	NEWIILAQDSMNML-UHFFFAOYSA-L
Smiles	C1(=C(C(=O)C(=O)C(=O)C1=O)[O-])[O-].[K+].[K+]
Isomeric SMILES	C1(=C(C(=O)C(=O)C(=O)C1=O)[O-])[O-].[K+].[K+]
WGK Germany	3
PubChem CID	83051
Molecular Weight	246.26
Beilstein	8535
Reaxy-Rn	7105528

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4 results found

Lot Number	Certificate Type	Date	Item
C2503411	Certificate of Analysis	Mar 12, 2025	P492081
L2212352	Certificate of Analysis	Dec 19, 2022	P492081
L2212351	Certificate of Analysis	Dec 19, 2022	P492081
L2212402	Certificate of Analysis	Dec 19, 2022	P492081

Chemical and Physical Properties

Solubility	Soluble in water
Melt Point(°C)	＞300℃
Molecular Weight	246.260 g/mol
XLogP3
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	0
Exact Mass	245.897 Da
Monoisotopic Mass	245.897 Da
Topological Polar Surface Area	114.000 Å²
Heavy Atom Count	14
Formal Charge	0
Complexity	236.000
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	3

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