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DIMETHYL SQUARATE |
| Synonyms. Squaric acid dimethyl ester; 3,4-Dimethoxy-3-cyclobutene-1,2-dione; Dimethyl squarate; Dimethoxycyclobutenedione; |
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| PRODUCT IDENTIFICATION | |
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CAS RN |
5222-73-1 |
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EINECS RN |
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FORMULA |
(CH3O)2C4(=O)2 |
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MOLE WEIGHT |
142.11 |
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H.S CODE |
2914.50.5000 |
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SMILES |
C1(=C(OC)C(C1=O)=O)OC |
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CLASSIFICATION |
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EXTRA NOTES |
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| PHYSICAL AND CHEMICAL PROPERTIES | |
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PHYSICAL STATE. |
white to off-white crystalline powder |
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MELTING POINT |
55 ~ 57 C |
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BOILING POINT |
286 C |
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DENSITY |
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SOLUBILITY IN WATER |
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| SOLVENT SOLUBILITY |
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VAPOR DENSITY |
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log P(octanol-water) |
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VAPOR PRESSURE |
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AUTOIGNITION TEMP |
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| pK |
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REFRACTIVE INDEX |
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FLASH POINT |
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| STABILITY AND REACTIVITY | |
| STABILITY | Stable under normal conditions. |
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INCOMPATIBLE MATERIALS |
Oxidizing agents |
| POLYMERIZATION |
Has not been reported |
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NFPA RATINGS |
Health: 1, Flammability: 0, Reactivity: 0 |
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| EXTERNAL LINKS & GENERAL DESCRIPTION |
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USA.gov - Dimethyl squarate Wikipedia Linking - Squaric acid Google Scholar Search - Squaric acid dimethyl ester PubChem Compound Summary - Squaric acid dimethyl ester http://www.ncbi.nlm.nih.gov/ - Squaric acid dimethyl ester Material Safety Data Sheet - Squaric acid dimethyl ester http://www.sigmaaldrich.com/ |
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| SALES SPECIFICATION | |
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APPEARANCE |
white to off-white crystalline powder |
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ASSAY |
99% min |
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MELTING POINT |
55 ~ 57 C |
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WATER |
0.5% max |
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| TRANSPORT & REGULATORY INFORMATION | |
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UN NO. |
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| HAZARD CLASS |
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| PACKING GROUP | |
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| SAFETY INFORMATION | |
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HAZARD OVERVIEW |
OSHA Hazards: Not known. GHS (Globally Harmonised System) Classification: Respiratory sensitization, Skin sensitization. May cause an allergic skin reaction. May cause allergy or asthma symptoms or breathing difficulties if inhaled. Potential Health Effects. Eye: May cause eye irritation. Skin: May cause skin irritation. Ingestion: May cause irritation of the digestive tract. Inhalation: May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. Chronic:No information found. |
| SIGNAL WORD | Danger |
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PICTOGRAMS |
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HAZARD STATEMENTS |
H317-H334 |
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P STATEMENTS |
P261-P280-P342 + P311 |
| EC DIRECTIVES |
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| HAZARD CODES |
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RISK PHRASES |
42/43 |
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SAFETY PHRASES |
22-24/25-26-36/37/39 |
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| PACKING |
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Preserve in light-resistant and well-closed containers |
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