Key Documents

View All Documentation

C0250

Sodium cacodylate trihydrate

Name: Sodium cacodylate trihydrate
Brand: SIGMA

≥98%

Synonym(s):

Cacodylic acid sodium salt trihydrate, Dimethylarsinic acid sodium salt, Dimethylarsonic acid sodium salt

Select a Size

Change View

About This Item

Linear Formula:

(CH₃)₂AsO₂Na · 3H₂O

CAS Number:

6131-99-3

Molecular Weight:

214.03

UNSPSC Code:

12161700

NACRES:

NA.21

PubChem Substance ID:

24892242

EC Number:

204-708-2

Beilstein/REAXYS Number:

3702348

MDL number:

MFCD00149079

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

Quality Level

200

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

Description

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. 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.

Application

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