Dibutyl squarate
Synonym(s):Dibutyl squarate
- CAS NO.：2892-62-8
- Empirical Formula: C12H18O4
- Molecular Weight: 226.27
- MDL number: MFCD00037150
- EINECS: 000-000-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:24:51
What is Dibutyl squarate?
Chemical properties
clear colorless to yellow liquid
The Uses of Dibutyl squarate
Squaric acid and its derivatives (Dibutyl squarate) are used in synthesis of pharmaceutical intermediates, squarylium dyes, and photoconducting squaraines.
The Uses of Dibutyl squarate
3,4-Dibutoxy-3-cyclobutene-1,2-dione was used in the synthesis of novel semisquarylium dye, useful for highly selective Hg2+ sensing in aqueous media. It was also employed in the synthesis of 3-butoxy-4-(1,3,3-trimethyl-2,3-dihydro-1H-2-indolylidenemethyl)-3-cyclobutene-1,2-dione, intermediate for the synthesis of squaryl dyes.
What are the applications of Application
3,4-Dibutoxy-3-cyclobutene-1,2-dione is a dialkyl ester of squaric acid
Definition
ChEBI: A cyclic ketone and diether that is a dibutyl ether derivative of squaric acid.
General Description
3,4-Dibutoxy-3-cyclobutene-1,2-dione is the dialkyl ester of squaric acid.
Properties of Dibutyl squarate
| Boiling point: | 139 °C0.5 mm Hg(lit.) |
| Density | 1.047 g/mL at 25 °C(lit.) |
| refractive index | n |
| Flash point: | >230 °F |
| storage temp. | Sealed in dry,Room Temperature |
| form | Liquid |
| color | Clear colorless to yellow |
| Water Solubility | INSOLUBLE |
| BRN | 1968189 |
| InChI | InChI=1S/C12H18O4/c1-3-5-7-15-11-9(13)10(14)12(11)16-8-6-4-2/h3-8H2,1-2H3 |
| CAS DataBase Reference | 2892-62-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Dibutyl squarate(2892-62-8) |
Safety information for Dibutyl squarate
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H317:Sensitisation, Skin H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Dibutyl squarate
| InChIKey | XBRWELTXMQSEIN-UHFFFAOYSA-N |
| SMILES | C1(=O)C(OCCCC)=C(OCCCC)C1=O |
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