Skip to Content
MilliporeSigma

Skip To

339792

3,4-Dibutoxy-3-cyclobutene-1,2-dione

98%

Synonym(s):

Dibutyl squarate

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View
Size/SKUAvailabilityPrice
5 g
Check Cart for Availability
$109.00
$81.75
25 g
Check Cart for Availability
$473.00
$354.75

About This Item

Linear Formula:
[CH3(CH2)3O]2C4(=O)2
CAS Number:
Molecular Weight:
226.27
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
MDL number:
Assay:
98%
Form:
liquid

$81.75

List Price$109.00Save 25%
Web-Only Promotion

Check Cart for Availability

​
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist


Quality Segment

assay

98%

form

liquid

refractive index

n20/D 1.494 (lit.)

bp

139 °C/0.5 mmHg (lit.)

density

1.047 g/mL at 25 °C (lit.)

functional group

ether, ketone

SMILES string

CCCCOC1=C(OCCCC)C(=O)C1=O

InChI

1S/C12H18O4/c1-3-5-7-15-11-9(13)10(14)12(11)16-8-6-4-2/h3-8H2,1-2H3

InChI key

XBRWELTXMQSEIN-UHFFFAOYSA-N

General description

3,4-Dibutoxy-3-cyclobutene-1,2-dione is the dialkyl ester of squaric acid.

Application

3,4-Dibutoxy-3-cyclobutene-1,2-dione was used in the synthesis of novel semisquarylium dye, useful for highly selective Hg2+ sensing in aqueous media. It was also employed in the synthesis of 3-butoxy-4-(1,3,3-trimethyl-2,3-dihydro-1H-2-indolylidenemethyl)-3-cyclobutene-1,2-dione, intermediate for the synthesis of squaryl dyes.

Compare Similar Items

View Full Comparison

Show Differences

1 of 1

This Item
310778
description

98%

description

98%

assay

98%

assay

98%

Quality Level

200

Quality Level

100

form

liquid

form

liquid

refractive index

n20/D 1.494 (lit.)

refractive index

n20/D 1.509 (lit.)

density

1.047 g/mL at 25 °C (lit.)

density

1.15 g/mL at 25 °C (lit.)

bp

139 °C/0.5 mmHg (lit.)

bp

95 °C/0.1 mmHg (lit.)


Pictograms

Exclamation mark

Signal Word

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class

10 - Combustible liquids

WGK

WGK 3

Flash Point (°F)

235.4 °F - closed cup

Flash Point (°C)

113 °C - closed cup

PPE (personal protective equipment)

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter



Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library



Questions

Reviews

No rating value

Active Filters