5222-73-1
5222-73-1 structure
- Name: Dimethyl squarate
- Chemical Name: 3,4-Dimethoxy-3-cyclobutene-1,2-dione
- CAS Number: 5222-73-1
- Molecular Formula: C6H6O4
- Molecular Weight: 142.109
- Catalog: Chemical reagent Organic reagent Olefins (cyclic and non-cyclic)
- Create Date: 2018-12-21 18:10:17
- Modify Date: 2026-06-30 17:56:24
| Name | 3,4-Dimethoxy-3-cyclobutene-1,2-dione |
|---|---|
| Synonyms |
diMethoxycyclobut-3-ene-1,2-dione
3,4-DIMETHOXY-3-CYCLOBUTENE-1,2-DIONE 3.4-diMethoxycyclobutane-1.2-dione. DiMethyl squate 3,4-dimethoxycyclobut-3-ene-1,2-dione Dimethyl squate, Squic acid dimethyl ester 3-Cyclobutene-1,2-dione,3,4-dimethoxy 1,2-Dimethoxycyclobutene-3,4-dione 3,4-DIMETHOXYCYCLOBUT-3-ENE-1,2-DIONE 3,4-Dimethoxy-3-cyclobutene-1,2-dione> 3,4-DIMETHOXY-3-CYCLOBUTENE-1,2-DIONE, 9 Squaric acid dimethyl ester EINECS 220-761-4 8,9-dimethoxy-2-[[2-(4-morpholinyl)ethylamino]-oxomethyl]-5,6-dihydropyrrolo[2,1-a]isoquinoline-3-cboxylic acid 3,4-Dimethoxy-3-cycl 1,2-Dimethoxy-1-cyclobutene-3,4-dione DIMETHYL SQUATE Squic acid dimethyl e Dimethyl squate, 1,2-Dimethoxy-3,4-dioxocyclobut-1-ene MFCD00101316 Squic acid dimethyl ester,(Dimethyl squate, 3,4-Dimethoxy-3-cyclobutene-1,2-dione) Dimethyl squate 3,4-Dimethoxy-3-cyclobutene-1,2-dione 3,4-DIMETHOXYCYCLOBUTANE-1,2-DIONE SQUIC ACID DIMETHYL ESTER |
| Density | 1.3±0.1 g/cm3 |
|---|---|
| Boiling Point | 286.1±50.0 °C at 760 mmHg |
| Melting Point | 55-57 °C(lit.) |
| Molecular Formula | C6H6O4 |
| Molecular Weight | 142.109 |
| Flash Point | 128.0±30.2 °C |
| Exact Mass | 142.026611 |
| PSA | 52.60000 |
| LogP | -1.21 |
| Vapour Pressure | 0.0±0.6 mmHg at 25°C |
| Index of Refraction | 1.478 |
| Storage condition | 0-6°C |
| Symbol |
GHS08 |
|---|---|
| Signal Word | Danger |
| Hazard Statements | H317-H334 |
| Precautionary Statements | P261-P280-P342 + P311 |
| Personal Protective Equipment | dust mask type N95 (US);Eyeshields;Faceshields;Gloves |
| Hazard Codes | Xi |
| Risk Phrases | R42/43 |
| Safety Phrases | S22-S24/25-S26-S36/37/39 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | 3 |
| HS Code | 2914509090 |
| Precursor 9 | |
|---|---|
| DownStream 5 | |
| HS Code | 2914509090 |
|---|---|
| Summary | HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |