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ChemicalBook >> CAS DataBase List >>3,4-Dimethoxy-3-cyclobutene-1,2-dione

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

3,4-Dimethoxy-3-cyclobutene-1,2-dione Structure
3,4-Dimethoxy-3-cyclobutene-1,2-dione structure
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;1,2-Dimethoxy-1-cyclobutene-3,4-dione;3,4-DIMETHOXY-3-CYCLOBUTENE-1,2-DIONE
CBNumber:
CB3165164
Molecular Formula:
C6H6O4
Molecular Weight:
142.11
MDL Number:
MFCD00101316
MOL File:
5222-73-1.mol
MSDS File:
SDS
Last updated:2023-04-23 13:52:06
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3,4-Dimethoxy-3-cyclobutene-1,2-dione Properties

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 and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS08
Signal word  Danger
Hazard statements  H317-H334
Precautionary statements  P261-P280-P342+P311
Risk Statements  42/43
Safety Statements  22-24/25-26-36/37/39
WGK Germany  3
HS Code  29145090
NFPA 704
1
2 0

3,4-Dimethoxy-3-cyclobutene-1,2-dione price More Price(39)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 377406 3,4-Dimethoxy-3-cyclobutene-1,2-dione 99% 5222-73-1 1g $16.5 2024-03-01 Buy
Sigma-Aldrich 377406 3,4-Dimethoxy-3-cyclobutene-1,2-dione 99% 5222-73-1 5g $104 2024-03-01 Buy
TCI Chemical D2099 3,4-Dimethoxy-3-cyclobutene-1,2-dione >98.0%(GC) 5222-73-1 1g $44 2024-03-01 Buy
TCI Chemical D2099 3,4-Dimethoxy-3-cyclobutene-1,2-dione >98.0%(GC) 5222-73-1 5g $134 2024-03-01 Buy
Alfa Aesar A18186 3,4-Dimethoxy-3-cyclobutene-1,2-dione, 98% 5222-73-1 1g $50.65 2024-03-01 Buy
Product number Packaging Price Buy
377406 1g $16.5 Buy
377406 5g $104 Buy
D2099 1g $44 Buy
D2099 5g $134 Buy
A18186 1g $50.65 Buy

3,4-Dimethoxy-3-cyclobutene-1,2-dione Chemical Properties,Uses,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 synthesis

67-56-1
2892-51-5
5222-73-1
Synthesis of 3,4-Dimethoxy-3-cyclobutene-1,2-dione from Methanol and Squaric acid

3,4-Dimethoxy-3-cyclobutene-1,2-dione Preparation Products And Raw materials

Raw materials

3,4-Diisopropoxy-3-cyclobutene-1,2-dione Diethyl squarate Squaric acid Methanol Trimethoxymethane
Triethyl orthoformate Iodomethane

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Preparation Products

3-[[[3,5-bis(trifluoromethyl)phenyl]methyl]amino]-4-[[(8α,9S)-6'-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione

3,4-Dimethoxy-3-cyclobutene-1,2-dione Suppliers

Global( 213)Suppliers
Supplier Tel Email Country ProdList Advantage
Capot Chemical Co.,Ltd. 		+86-（0）57185586718 +86-13336195806 sales@capot.com China 29791 60
Shanghai Time Chemicals CO., Ltd. 		+86-021-57951555 +8617317452075 jack.li@time-chemicals.com China 1803 55
career henan chemical co 		+86-0371-86658258 +8613203830695 sales@coreychem.com China 29881 58
Accela ChemBio Inc. 		+1-858-6993322 info@accelachem.com United States 17453 58
Chongqing Chemdad Co., Ltd 		+86-023-6139-8061 +86-86-13650506873 sales@chemdad.com China 39894 58
Alchem Pharmtech,Inc. 		8485655694 sales@alchempharmtech.com United States 63687 58
CONIER CHEM AND PHARMA LIMITED 		+8618523575427 sales@conier.com China 49374 58
Shaanxi Dideu Medichem Co. Ltd 		+86-29-87569266 15319487004 1015@dideu.com China 4080 58
Antai Fine Chemical Technology Co.,Limited 		18503026267 info@antaichem.com CHINA 9636 58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd 		+8613580539051 joe@yuhengpharm.com CHINA 21142 58
Supplier Advantage
Capot Chemical Co.,Ltd. 		60
Shanghai Time Chemicals CO., Ltd. 		55
career henan chemical co 		58
Accela ChemBio Inc. 		58
Chongqing Chemdad Co., Ltd 		58
Alchem Pharmtech,Inc. 		58
CONIER CHEM AND PHARMA LIMITED 		58
Shaanxi Dideu Medichem Co. Ltd 		58
Antai Fine Chemical Technology Co.,Limited 		58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd 		58

View Lastest Price from 3,4-Dimethoxy-3-cyclobutene-1,2-dione manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3,4-Dimethoxy-3-cyclobutene-1,2-dione pictures 2024-11-29 3,4-Dimethoxy-3-cyclobutene-1,2-dione
5222-73-1
 US $0.00 / KG 1KG 98%min 30tons/month WUHAN FORTUNA CHEMICAL CO., LTD
3,4-Dimethoxy-3-cyclobutene-1,2-dione pictures 2022-09-20 3,4-Dimethoxy-3-cyclobutene-1,2-dione
5222-73-1
 US $0.00-0.00 / KG 1KG 98% 1ton Henan Aochuang Chemical Co.,Ltd.
3,4-Dimethoxy-3-cyclobutene-1,2-dione pictures 2019-07-06 3,4-Dimethoxy-3-cyclobutene-1,2-dione
5222-73-1
 US $7.00 / kg 1kg 99% 100kg Career Henan Chemical Co

3,4-Dimethoxy-3-cyclobutene-1,2-dione Spectrum

3,4-Dimethoxy-3-cyclobutene-1,2-dione(5222-73-1)MS3,4-Dimethoxy-3-cyclobutene-1,2-dione(5222-73-1)1HNMR3,4-Dimethoxy-3-cyclobutene-1,2-dione(5222-73-1)13CNMR3,4-Dimethoxy-3-cyclobutene-1,2-dione(5222-73-1)IR13,4-Dimethoxy-3-cyclobutene-1,2-dione(5222-73-1)IR2

5222-73-1(3,4-Dimethoxy-3-cyclobutene-1,2-dione)Related Search:

Dimethyl sulfoxide 1,1-Dimethoxyethane Diphenyldimethoxysilane Dimethyldimethoxysilane Dacthal
(-)-Dimethyl D-tartrate Dimethyl malonate Dimethyl ether Dimethyl acetylenedicarboxylate Dimethyl fumarate
3-SULFOLENE Dimethyl sebacate N,N-Dimethylformamide Dimethyl malate DIMETHYL PHOSPHATE
Dimethyl suberate Dimethyl sulfate Dimethyl carbonate

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3-Cyclobutene-1,2-dione,3,4-dimethoxy- 3,4-Dimethoxycyclobut-3-ene-1,2-dione 98% Dimethyl squarate, 1,2-Dimethoxy-3,4-dioxocyclobut-1-ene Dimethyl squarate 3,4-Dimethoxy-3-cyclobutene-1,2-dione SQUARIC ACID DIMETHYL ESTER 3,4-DIMETHOXY-3-CYCLOBUTENE-1,2-DIONE Squaric acid dimethyl ester,(Dimethyl squarate, 3,4-Dimethoxy-3-cyclobutene-1,2-dione) 3,4-DIMETHOXYCYCLOBUTANE-1,2-DIONE Dimethyl squarate, Squaric acid dimethyl ester 1,2-Dimethoxy-1-cyclobutene-3,4-dione 1,2-Dimethoxycyclobutene-3,4-dione 3,4-DIMETHOXY-3-CYCLOBUTENE-1,2-DIONE, 9 9% 3,4-Dimethoxy-3-cycl 3.4-diMethoxycyclobutane-1.2-dione. DiMethyl squarate Squaric acid dimethyl e 8,9-dimethoxy-2-[[2-(4-morpholinyl)ethylamino]-oxomethyl]-5,6-dihydropyrrolo[2,1-a]isoquinoline-3-carboxylic acid 3,4-Dimethoxy-3-cyclobutene-1,2-dione> DIMETHYL SQUARATE diMethoxycyclobut-3-ene-1,2-dione 3,4-DIMETHOXYCYCLOBUT-3-ENE-1,2-DIONE 5222-73-1 CH3O2C4O2 C6H6O4 Ketones Organic Building Blocks C3 to C6 Simple 4-Membered Ring Compounds Cyclobutanes & Cyclobutenes Carbonyl Compounds Building Blocks Cyclobutanes & Cyclobutenes Simple 4-Membered Ring Compounds Ring Systems Aluminium foil bag/Fluoride bottle or on your request Pyrimidines