3,4-Dimethoxy-3-cyclobutene-1,2-dione
- Product Name
- 3,4-Dimethoxy-3-cyclobutene-1,2-dione
- CAS No.
- 5222-73-1
- Chemical Name
- 3,4-Dimethoxy-3-cyclobutene-1,2-dione
- Synonyms
- 3,4-DIMETHOXYCYCLOBUT-3-ENE-1,2-DIONE;DIMETHYL SQUARATE;diMethoxycyclobut-3-ene-1,2-dione;3,4-Dimethoxy-3-cycl;Squaric acid dimethyl e;SQUARIC ACID DIMETHYL ESTER;3,4-DIMETHOXYCYCLOBUTANE-1,2-DIONE;1,2-Dimethoxycyclobutene-3,4-dione;3,4-DIMETHOXY-3-CYCLOBUTENE-1,2-DIONE;1,2-Dimethoxy-1-cyclobutene-3,4-dione
- CBNumber
- CB3165164
- Molecular Formula
- C6H6O4
- Formula Weight
- 142.11
- MOL File
- 5222-73-1.mol
3,4-Dimethoxy-3-cyclobutene-1,2-dione Property
- Melting point:
- 55-57 °C (lit.)
- Boiling point:
- 219.65°C (rough estimate)
- Density
- 1.3863 (rough estimate)
- refractive index
- 1.5800 (estimate)
- storage temp.
- 2-8°C
- solubility
- DMSO, Methanol (Slightly)
- form
- Solid
- color
- Off-White to Pale Brown
- Water Solubility
- Very soluble in water.
- InChIKey
- SZBNZTGCAMLMJY-UHFFFAOYSA-N
- CAS DataBase Reference
- 5222-73-1(CAS DataBase Reference)
- NIST Chemistry Reference
- 3,4-Dimethoxy-3-cyclobutene-1,2-dione(5222-73-1)
Safety
- Risk Statements
- 42/43
- Safety Statements
- 22-24/25-26-36/37/39
- WGK Germany
- 3
- HS Code
- 29145090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H317May cause an allergic skin reaction
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P342+P311IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.
N-Bromosuccinimide Price
- Product number
- 377406
- Product name
- 3,4-Dimethoxy-3-cyclobutene-1,2-dione
- Purity
- 99%
- Packaging
- 1g
- Price
- $16.5
- Updated
- 2024/03/01
- Product number
- 377406
- Product name
- 3,4-Dimethoxy-3-cyclobutene-1,2-dione
- Purity
- 99%
- Packaging
- 5g
- Price
- $104
- Updated
- 2024/03/01
- Product number
- D2099
- Product name
- 3,4-Dimethoxy-3-cyclobutene-1,2-dione
- Purity
- >98.0%(GC)
- Packaging
- 1g
- Price
- $44
- Updated
- 2024/03/01
- Product number
- D2099
- Product name
- 3,4-Dimethoxy-3-cyclobutene-1,2-dione
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $134
- Updated
- 2024/03/01
- Product number
- A18186
- Product name
- 3,4-Dimethoxy-3-cyclobutene-1,2-dione, 98%
- Packaging
- 1g
- Price
- $50.65
- Updated
- 2024/03/01
3,4-Dimethoxy-3-cyclobutene-1,2-dione Chemical Properties,Usage,Production
Chemical Properties
white crystalline powder
Uses
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.
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.
3,4-Dimethoxy-3-cyclobutene-1,2-dione Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 3,4-Dimethoxy-3-cyclobutene-1,2-dione manufacturers
- Product
- 3,4-Dimethoxy-3-cyclobutene-1,2-dione 5222-73-1
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 98%min
- Supply Ability
- 30tons/month
- Release date
- 2023-01-30
- Product
- 3,4-Dimethoxy-3-cyclobutene-1,2-dione 5222-73-1
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 1ton
- Release date
- 2022-09-19
- Product
- 3,4-Dimethoxy-3-cyclobutene-1,2-dione 5222-73-1
- Price
- US $7.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 100kg
- Release date
- 2018-12-14