missing translation for 'onlineSavingsMsg'
Learn More
Please login to your online account to display your discounted pricing

Alfa Aesar™ 3,4-Dihydroxy-3-cyclobutene-1,2-dione, 98+%

$71.05 - $71.05

Chemical Identifiers

CAS 2892-51-5
Molecular Formula C4H2O4
Formula Weight 114.06
MDL Number MFCD00001334
UN Number UN3261
Beilstein 774275
Synonym Squaric acid
Chemical Name or Material 3,4-Dihydroxy-3-cyclobutene-1,2-dione
View More Specs


Products ${productFamilyLength}
Catalog Number Mfr. No. Quantity Price Quantity  
Catalog Number Mfr. No. Quantity Price Quantity  
AAA1516906 SDS Alfa Aesar™
A1516906
5g Each for $71.05
AAA1516914 SDS Alfa Aesar™
A1516914
25g N/A N/A  
Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.
AAA1516922 SDS Alfa Aesar™
A1516922
100g N/A N/A  
Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.
Specifications

Description

Applications
3,4-Dihydroxy-3-cyclobutene-1,2-dione is used to produce diethoxy-cyclobutenedione by heating, pharmaceutical intermediates, squarylium dyes, and photoconducting squaraines; The dibutylester is used as a contact sensitizer in the treatment of alopecia and warts.

Solubility
Soluble in water.

Notes
Keep container tightly closed. Store in cool, dry conditions in well sealed containers.
Description & Specifications

Chemical Identifiers

2892-51-5
114.06
UN3261
Squaric acid
C4H2O4
MFCD00001334
774275
3,4-Dihydroxy-3-cyclobutene-1,2-dione

Specifications

190°C (374°F)
5g
C4H2O4
MFCD00001334
774275
3,4-Dihydroxy-3-cyclobutene-1,2-dione
>300°C
2892-51-5
114.06
UN3261
Squaric acid
≥98%

Safety and Handling

GHS H Statement
H314-H318
Causes severe skin burns and eye damage.
Causes serious eye damage.

GHS P Statement
P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a
Do not breathe dust/fume/gas/mist/vapors/spray.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

Danger

DOTInformation : Transport Hazard Class: 8; Packing Group: II; Proper Shipping Name: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.

RTECSNumber : GU1800000

TSCA : TSCA