Merck
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C0250

Sigma-Aldrich

Sodium cacodylate trihydrate

≥98%

Synonym(s):
Cacodylic acid sodium salt trihydrate, Dimethylarsinic acid sodium salt, Dimethylarsonic acid sodium salt
Linear Formula:
(CH3)2AsO2Na · 3H2O
CAS Number:
Molecular Weight:
214.03
Beilstein:
3702348
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

assay

≥98%

form

powder

pH

5.1-7.4

pKa (25 °C)

6.27

solubility

water: 100 mg/mL, clear, colorless

application(s)

ADME/TOX

storage temp.

room temp

SMILES string

[Na+].[H]O[H].[H]O[H].[H]O[H].C[As](C)([O-])=O

InChI

1S/C2H7AsO2.Na.3H2O/c1-3(2,4)5;;;;/h1-2H3,(H,4,5);;3*1H2/q;+1;;;/p-1

InChI key

RLGWPHBPRCROJO-UHFFFAOYSA-M

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General description

Sodium cacodylate is an organic arsenic compound that is metabolized to produce inorganic, trivalent arsenic in vivo. Sodium cacodylate has been used as a source of arsenic in toxicological research.[1] It is used as a buffer with an effective pH buffering range of 5.1-7.4. In microscopy studies, the buffering capacity of cacodylate prevents excess acidity that may result from tissue fixation.[2][3]

Application

Sodium cacodylate trihydrate has been used in the stabilization of the fixatives for electron microscopy.[4] It has also been used to collect vibratome sections to perform nucleoside-diphosphatase technique.[5]

Packaging

10, 25, 100, 500 g in poly bottle

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B

Storage Class Code

6.1B - Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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