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

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Formula: C8H10O4
CAS: 5231-87-8

Identification

Structural Formula
3,4-Diethoxy-3-cyclobutene-1,2-dione
CAS:
5231-87-8
EINECS:
Molecular Formula:
C8H10O4
MDL:
MFCD00001333
SMILES:
CCOC1=C(C(=O)C1=O)OCC
Synonym:
diethoxycyclobutenedione ; diethyl squarate ; diethyl suquarate ; timtec-bb sbb008498 ; suquaric acid diethyl ester ; diethylsquarate98% ; 3,4-diethoxycyclobutane-1,2-dione ; squaric acid diethyl ester ; 1,2-diethoxycyclobutenedione ; diethyl quadratate


Description

Useful starting material for synthesis of furanones and quinones. Also undergoes ethoxy substitution with amines and unsaturated organosilanes.


Suppliers

Carbone Scientific Co., Ltd.
CS30249072
Xiamen Hisunny Chemical Co., Ltd.
XHC356414256
Capot Chemical Co., Ltd.
9741
Santa Cruz Biotechnology, Inc.
252042
Dayang Chem (Hangzhou) Co.,Ltd.
DC334813392
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Acros Organics BVBA
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Prices & Availability




Data is processed


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

Molecular Weight:
170.16 g·mol−1
Density:
1.15 g/mL at 25 °C(lit.)
Boiling point:
95 °C0.1 mm Hg(lit.)
Flash point:
>230 ºF
Solubility:
Soluble in water (partly).
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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
GHS08

GHS08
Health hazard
  • Respiratory sensitization, category 1
  • Germ cell mutagenicity, categories 1A, 1B, 2
  • Carcinogenicity, categories 1A, 1B, 2
  • Reproductive toxicity, categories 1A, 1B, 2
  • Specific target organ toxicity following single exposure, categories 1, 2
  • Specific target organ toxicity following repeated exposure, categories 1, 2
  • Aspiration hazard, categories 1, 2

Safety & Transport Information

Risk Codes:
R36/37/38 - Irritating to eyes, respiratory system and skin
R42/43 - May cause sensitization by inhalation and skin contact
Safety Codes:
S23 - Do not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer)
S24 - Avoid contact with skin
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S37/39 - Wear suitable gloves and eye/face protection
S7 - Keep container tightly closed
Hazard Symbols:
Xn, Xi
Hazard symbol Xn Hazard symbol Xi
Storage temperature :
2-8°C
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Alternative Distributors of [3,4-Diethoxy-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

Fine & Fine Chemical Industrial Co., Ltd. | ABCR GmbH & Co. KG | Chemexcel International Ltd. | Pharmasi Chemicals Co., Ltd. | Frinton Laboratories | TCI Europe NV | Changzhou Hi-Tech Chemicals Limited | Conier Chem & Pharma Ltd | Shanghai AOKChem Group Limited | Hangzhou Sage Chemical Co., Ltd. | Ark Pharm, Inc. | 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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