CAS Number5231-87-8
SynonymsDiethyl squarate; 3,4-diethoxycyclobut-3-ene-1,2-dione; MFCD00001333; 3,4-Diethoxy-3-cyclobutene-1,2-dione; Squaric Acid Diethyl Ester
Molecular Formula(C2H5O)2C4(=O)2
Molecular Weight170.16
Purity98%
Density1.2±0.1 g/cm3
Boiling Point95 °C/0.1 mmHg (lit.)
Melting Point19 °C
Appearanceliquid
Symbol
Signal WordWarning
| Chemical & Physical Properties | |
|---|---|
| CAS Number | 5231-87-8 |
| Catalog No. | 2A-9031545 |
| Chinese Name | 方酸二乙酯 |
| Synonyms | Diethyl squarate; 3,4-diethoxycyclobut-3-ene-1,2-dione; MFCD00001333; 3,4-Diethoxy-3-cyclobutene-1,2-dione; Squaric Acid Diethyl Ester |
| Molecular Formula | (C2H5O)2C4(=O)2 |
| Molecular Weight | 170.16 |
| Purity | 98 |
| Density | 1.2±0.1 g/cm3 |
| Boiling Point | 95 °C/0.1 mmHg (lit.) |
| Melting Point | 19 °C |
| Appearance | liquid |
| Water Solubility | insoluble |
| Storage Condition | Avoid light, keep in a cool and dry place, sealed |
| PubChem ID | 24858814 |
| MDL Number | MFCD00001333 |
| SMILES | CCOC1=C(OCC)C(=O)C1=O |
| InChI | 1S/C8H10O4/c1-3-11-7-5(9)6(10)8(7)12-4-2/h3-4H2,1-2H3 |
| InChI Key | DFSFLZCLKYZYRD-UHFFFAOYSA-N |
| Beilstein/REAXYS | 640626 |
| NACRES Code | NA.22 |
| UNSPSC | 12352100 |
| Hazard Symbols | transportation |
| MSDS | msds/31545_1_5231_87_8.pdf |
| Transport Info | Shipping Name: UN |
| MSDS Transport Info | Module 14. Shipping information 14.1 United Nations number European Land Transport Dangerous Regulations: -International Maritime Dangerous Regulations: -International Air Transport Dangerous Regulations: - 14.2 United Nations shipping name European Land Transport Dangerous Regulations: Non-dangerous goods IMDG Code: Non-dangerous goods International air transport dangerous goods regulations: non-dangerous goods 14.3 Transport hazard categories European Land Transport Dangerous Regulations: -International Maritime Dangerous Regulations: -International Air Transport Dangerous Regulations: - 14.4 Package group European Land Transport Dangerous Regulations: -International Maritime Dangerous Regulations: -International Air Transport Dangerous Regulations: - 14.5 Environmental hazards European Land Transport Danger Regulations: No International Maritime Danger Regulations International Air Transport Danger Regulations: No Marine pollutants (yes/no): No 14.6 Special precautions No data available |
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