DIBUTYL SQUARATE

Synonyms. Dibutyl squarate; Squaric acid dibutyl ester; 3,4-Dibutoxy-3-cyclobutene-1,2-dione ;

DIBUTYL SQUARATE

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PRODUCT IDENTIFICATION

CAS RN

2892-62-8

EINECS RN

 

FORMULA

[CH3(CH2)3O]2C4(=O)2

MOLE WEIGHT

226.27

H.S CODE

2914.50.5000

SMILES

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

CLASSIFICATION

Adjuvant, Immunologic, Enol

EXTRA NOTES

 

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE.

pale yellow liquid

MELTING POINT

 

BOILING POINT

139 C at 0.5 mm Hg

DENSITY

1.047

SOLUBILITY IN WATER

 

SOLVENT SOLUBILITY

 

VAPOR DENSITY

 

log P(octanol-water)

 

VAPOR PRESSURE

 

AUTOIGNITION TEMP

 
pK

 

REFRACTIVE INDEX

1.494

FLASH POINT

 

 

STABILITY AND REACTIVITY
STABILITY Stable under normal conditions.

INCOMPATIBLE MATERIALS

Strong oxidizing agents

POLYMERIZATION

Has not been reported

NFPA RATINGS

Health: 1, Flammability: 0, Reactivity: 0

 

EXTERNAL LINKS & GENERAL DESCRIPTION

USA.gov - Squaric acid dibutyl ester

Wikipedia Linking - Squaric acid

Google Scholar Search - Squaric acid dibutyl ester

Drug Information Portal (U.S. National Library of Medicine) - Squaric acid dibutyl ester

PubChem Compound Summary - Squaric acid dibutyl ester

http://www.ncbi.nlm.nih.gov/ -  Squaric acid dibutyl ester

Material Safety Data Sheet - Squaric acid dibutyl ester

 

SALES SPECIFICATION

APPEARANCE

clear to pale yellow liquid

ASSAY

98% min

WATER

1.0% max

 

TRANSPORT & REGULATORY INFORMATION

UN NO.

 

HAZARD CLASS

 

PACKING GROUP  

 

SAFETY INFORMATION

HAZARD OVERVIEW

OSHA Hazards: Irritant. GHS (Globally Harmonised System) Classification: Acute toxicity, Oral. Skin irritation. Eye irritation. Specific target organ toxicity - single exposure. Potential Health Effects: Eyes: May cause eye irritation. Skin: May be harmful if absorbed through skin. May cause skin irritation. Inhalation: May be harmful if inhaled. May cause respiratory tract irritation. Ingestion: May be harmful if swallowed.

SIGNAL WORD Warning

PICTOGRAMS

HAZARD STATEMENTS

H315-H319-H335

P STATEMENTS

P261-P305 + P351 + P338

EC DIRECTIVES

 

HAZARD CODES

RISK PHRASES

36/37/38-42/43

SAFETY PHRASES

26-27-36/37/39-45

 

PACKING

Preserve in light-resistant and well-closed containers