3,4-Dimethoxy-3-cyclobutene-1,2-dione | CAS 5222-73-1

Element: cyclobutene dimethoxy dione

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C-S » Chemicals » dimethoxy-cyclobutene-dione-PX49380

Identification

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

CAS:

5222-73-1

EINECS:

Molecular Formula:

C₆H₆O₄

MDL:

MFCD00101316

SMILES:

COC1=C(OC)C(=O)C1=O

Synonym:

dimethyl squarate ; 1,2-dimethoxycyclobutene-3,4-dione ; 3,4-dimethoxy-3-cycl ; 3,4-dimethoxy-3-cyclobutene-1,2-dione ; 1,2-dimethoxy-1-cyclobutene-3,4-dione ; 3,4-dimethoxycyclobut-3-ene-1,2-dione ; 3,4-dimethoxycyclobutane-1,2-dione ; squaric acid dimethyl ester ; 3-cyclobutene-1,2-dione,3,4-dimethoxy- ; dimethoxycyclobut-3-ene-1,2-dione

Description

Starting material used to prepare o-quinodimethanes, benzocyclobutenes, and quinones.

Suppliers

Autech Industry Co.,Limited

AIC299711988

BLD Pharmatech Ltd

BP19985994

Ambeed, Inc.

A229849

Xiamen Equation Chemical Co.,Ltd

XECC355217760

Wanko Chemical Co., Ltd.

WC26647992

Finetech Industry Limited

FIL277511100

Carbone Scientific Co., Ltd.

CS31089324

Xiamen Hisunny Chemical Co., Ltd.

XHC366314652

AK Scientific, Inc.

AS21096327

DSL Chemicals (Shanghai) Co., Ltd.

C021139

Simagchem Corporation

SC23316993

Zehao Industry Co., Ltd.

ZI26647992

Leap Chem Co., Ltd

LC19985994

Santa Cruz Biotechnology, Inc.

252045

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CAS equal suppliers

Dimethyl squarate

Evonik ( formerly Wilshire Technologies, Inc. )

E16326528

Dimethyl squarate

Dayang Chem (Hangzhou) Co.,Ltd.

DC10544216

Dimethyl squarate

Gihi Chemicals Co., Limited

GCL9183672

Squaric acid dimethyl ester

Haihang Industry Co., Ltd.

HI28088424

3,4-Dimethoxycyclobut-3-ene-1,2-dione

Key Organics Limited

PS-4471

3-Cyclobutene-1,2-dione, 3,4-dimethoxy-

Angene International Limited

AGN-PC-0JLOBN

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

Alfa (A Johnson Matthey Company)

A403212096

Prices & Availability

Data is processed

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

Molecular Weight:

142.11 g·mol−1

Melting point:

55-57 °C(lit.)

Physical Description:

white crystalline powder

Hazard Statements

GHS03
Harmful

Acute toxicity (oral, dermal, inhalation), category 4
Skin irritation, categories 2, 3
Eye irritation, category 2A
Skin sensitization, category 1
Specific target organ toxicity following single exposure, category 3
- Respiratory tract irritation
- Narcotic effects

Not used

with the "skull and crossbones" pictogram
for skin or eye irritation if:
the "corrosion" pictogram also appears
the "health hazard" pictogram is used to indicate respiratory sensitization

Safety & Transport Information

Risk Codes:

R42/43 - May cause sensitization by inhalation and skin contact

Safety Codes:

S22 - Do not breathe dust
S24/25 - Avoid contact with skin and eyes
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection

Storage temperature :

0-6°C

Alternative Distributors of [3,4-Dimethoxy-3-cyclobutene-1,2-dione]

Producers or manufacturers change the product range from time to time. The following companies
have appeared as suppliers in the past / currently not verified

Downloads

Mol File:

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MSDS:

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