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

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Formula: C6H6O4
CAS: 5222-73-1

Identification

Structural Formula
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

Ambeed, Inc.
A229849
BLD Pharmatech Ltd
BP19985994
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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Haihang Industry Co., Ltd.
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3,4-Dimethoxycyclobut-3-ene-1,2-dione
Key Organics Limited
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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


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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
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Hazard Statements

GHS07

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
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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

Davos Chemical Corp. | Fine & Fine Chemical Industrial Co., Ltd. | ABCR GmbH & Co. KG | TCI Europe NV | Changzhou Hi-Tech Chemicals Limited | Chengdu Qiaofeng Technological Development Co., Ltd. | Shanghai AOKChem Group Limited | Suzhou Rovathin Pharmatech Co., Ltd | Hangzhou Sage Chemical Co., Ltd. | Atomole Scientific Co., Ltd. | Jinan Great Chemical Co., Ltd. | East Chemical Industry Co., Ltd. | Zhejiang Kaili Industrial Co., Ltd. | Watson International Ltd | BOC Sciences | Jinan Haohua Industry Co., Ltd. | Sino Rarechem Labs Co. Ltd. | Gihi Chemicals Co., Limited | Wanko Chemical Co., Ltd.

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MSDS:
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