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3,4-Dimethoxy-3-cyclobutene-1,2-dione, 98%

CAS: 5222-73-1 | C6H6O4 | 142.11 g/mol

Supplier:  Thermo Scientific Chemicals A1818606

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Catalog No. AAA1818606


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Description

Description

3,4-Dimethoxy-3-cyclobutene-1,2-dione (Dimethyl squarate) finds it uses in the synthesis of chiral squaramides, highly enantioselective catalyst for the Friedel-Crafts reactions of indoles, 3-(hydroxyamino)-4-methoxy-3-cyclobutene-1,2-dione, squarate derivatives of the O-SP-core antigens, methyl squarate derivative of the Ogawa O-SP-core antigen, o-quinodimethanes, benzocyclobutenes, quinones. It is employed as a starting material in the preparation of o-quinodimethanes, benzocyclobutenes, and quinones.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
3,4-Dimethoxy-3-cyclobutene-1,2-dione (Dimethyl squarate) finds it uses in the synthesis of chiral squaramides, highly enantioselective catalyst for the Friedel-Crafts reactions of indoles, 3-(hydroxyamino)-4-methoxy-3-cyclobutene-1,2-dione, squarate derivatives of the O-SP-core antigens, methyl squarate derivative of the Ogawa O-SP-core antigen, o-quinodimethanes, benzocyclobutenes, quinones. It is employed as a starting material in the preparation of o-quinodimethanes, benzocyclobutenes, and quinones.

Solubility
Very soluble in water.

Notes
Store away from oxidizing agents. Keep the container tightly closed and place it in a cool, dry and well ventilated condition.
Specifications

Specifications

3,4-Dimethoxy-3-cyclobutene-1,2-dione
53°C to 56°C
MFCD00101316
3,4-dimethoxy-3-cyclobutene-1,2-dione, dimethyl squarate, squaric acid dimethyl ester, 3-cyclobutene-1,2-dione, 3,4-dimethoxy, 3,4-dimethoxy-cyclobut-3-ene-1,2-dione, dimethoxycyclobut-3-ene-1,2-dione, 3-cyclobutene-1,2-dione,3,4-dimethoxy, 3,4-dimethoxycyclobut-3-en-1,2-dion, dimethoxycyclobutenedione, pubchem13709
SZBNZTGCAMLMJY-UHFFFAOYSA-N
3,4-dimethoxycyclobut-3-ene-1,2-dione
123227
98%
5222-73-1
C6H6O4
5 g
Very soluble in water.
COC1=C(C(=O)C1=O)OC
142.11
142.1

Chemical Identifiers

5222-73-1
142.11
SZBNZTGCAMLMJY-UHFFFAOYSA-N
3,4-dimethoxycyclobut-3-ene-1,2-dione
C6H6O4
MFCD00101316
123227
COC1=C(C(=O)C1=O)OC
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Safety and Handling

Safety and Handling

GHS H Statement
H334-H335-H315-H319-H317
May cause allergy or asthma symptoms or breathing difficulties if inhaled.
May cause respiratory irritation.
Causes skin irritation.
Causes serious eye irritation.
May cause an allergic skin reaction.

P261-P264b-P271-P272-P280-P285-P302+P352-P304+P340-P305+P351+P338-P333+P313-P342+P311-P362-P501c

H315-H317-H319-H334-H335

TSCA : No

Recommended Storage : Keep cold

SDS
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