377406
3,4-Dimethoxy-3-cyclobutene-1,2-dione
99%
Synonym(s):
Dimethyl squarate
Sign Into View Organizational & Contract Pricing
Select a Size
Change View
1 G
$28.30
5 G
$107.00
About This Item
Linear Formula:
(CH3O)2C4(=O)2
CAS Number:
Molecular Weight:
142.11
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
Skip To
Quality Level
assay
99%
form
solid
mp
55-57 °C (lit.)
functional group
ether
ketone
storage temp.
2-8°C
SMILES string
COC1=C(OC)C(=O)C1=O
InChI
1S/C6H6O4/c1-9-5-3(7)4(8)6(5)10-2/h1-2H3
InChI key
SZBNZTGCAMLMJY-UHFFFAOYSA-N
Related Categories
1 of 4
This Item | 310778 | 339792 | 123447 |
|---|---|---|---|
| assay 99% | assay 98% | assay 98% | assay ≥99.0% (HPLC) |
| Quality Level 100 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| form solid | form liquid | form liquid | form solid |
| storage temp. 2-8°C | storage temp. - | storage temp. - | storage temp. - |
| mp 55-57 °C (lit.) | mp - | mp - | mp >300 °C (lit.) |
| functional group ether | functional group ether, ketone | functional group ether, ketone | functional group - |
General description
3,4-Dimethoxy-3-cyclobutene-1,2-dione (Dimethyl squarate) is a cyclobutene derivative. It reacts with hydroxylamine derivatives to afford 3-hydroxyamino-4-methoxy-3-cyclobutene-1,2-diones.[1]
Application
3,4-Dimethoxy-3-cyclobutene-1,2-dione (Dimethyl squarate) may be used in the synthesis of the following compounds:
- chiral squaramides, highly enantioselective catalyst for the Friedel-Crafts reactions of indoles[2]
- 3-(hydroxyamino)-4-methoxy-3-cyclobutene-1,2-dione[3]
- squarate derivatives of the O-SP-core antigens[4]
- methyl squarate derivative of the Ogawa O-SP-core antigen[5]
- o-quinodimethanes[6]
- benzocyclobutenes[6]
- quinones[7][8]
signalword
Danger
hcodes
Hazard Classifications
Resp. Sens. 1 - Skin Sens. 1
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Active Filters
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service
