ChemicalBook > CAS DataBase List > Diethyl squarate

Diethyl squarate

Product Name
Diethyl squarate
CAS No.
5231-87-8
Chemical Name
Diethyl squarate
Synonyms
DIETHYL SQUARATE;3,4-DiethoxycycL;DIETHYL SUQUARATE;DiethylSquarate98%;Diethyl quadratate;TIMTEC-BB SBB008498;obut-3-ene-1,2-dione;DIETHOXYCYCLOBUTENEDIONE;SQUARIC ACID DIETHYL ESTER;SUQUARIC ACID DIETHYL ESTER
CBNumber
CB1106356
Molecular Formula
C8H10O4
Formula Weight
170.16
MOL File
5231-87-8.mol
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Diethyl squarate Property

Melting point:
13-18 °C
Boiling point:
95 °C0.1 mm Hg(lit.)
Density 
1.15 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.509(lit.)
Flash point:
>230 °F
storage temp. 
2-8°C
form 
Liquid
color 
Clear yellow to light brownish
Water Solubility 
insoluble
BRN 
640626
InChIKey
DFSFLZCLKYZYRD-UHFFFAOYSA-N
CAS DataBase Reference
5231-87-8(CAS DataBase Reference)
NIST Chemistry Reference
3,4-Diethoxy-3-cyclobutene-1,2-dione(5231-87-8)
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Safety

Hazard Codes 
Xn,Xi
Risk Statements 
36/37/38-42/43
Safety Statements 
7-26-37/39-24-23
WGK Germany 
3
RTECS 
GU1772466
F 
10
Hazard Note 
Irritant
HS Code 
29145090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H315Causes skin irritation

H317May cause an allergic skin reaction

H319Causes serious eye irritation

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

H335May cause respiratory irritation

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
310778
Product name
3,4-Diethoxy-3-cyclobutene-1,2-dione
Purity
98%
Packaging
5g
Price
$132
Updated
2024/03/01
TCI Chemical
Product number
D3253
Product name
3,4-Diethoxy-3-cyclobutene-1,2-dione
Purity
>98.0%(GC)
Packaging
5g
Price
$67
Updated
2024/03/01
TCI Chemical
Product number
D3253
Product name
3,4-Diethoxy-3-cyclobutene-1,2-dione
Purity
>98.0%(GC)
Packaging
25g
Price
$269
Updated
2024/03/01
Alfa Aesar
Product number
A19248
Product name
3,4-Diethoxy-3-cyclobutene-1,2-dione, 98%
Packaging
1g
Price
$50.65
Updated
2024/03/01
Alfa Aesar
Product number
A19248
Product name
3,4-Diethoxy-3-cyclobutene-1,2-dione, 98%
Packaging
5g
Price
$160.65
Updated
2024/03/01
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Diethyl squarate Chemical Properties,Usage,Production

Chemical Properties

clear yellow to light brownish liquid

Uses

3,4-Dethoxy-3-cyclobutene-1,2-dione is used as a starting material for synthesis of furanones and quinones. It undergoes ethoxy substitution with amines and unsaturated organosilanes.

Uses

Diethyl squarate is an intermediate for pharma products, for photochemicals used in the dry-view process, in synthesis of photosensitive squaraine dyes (eg. laser dyes used in CD-Rom) and as intermediate for functional polymers.

General Description

The reaction of 3,4-diethoxy-3-cyclobutene-1,2-dione (squaric acid diethyl ester) with glycosylamines (formed by reducing oligosaccharides) was studied. The derivatives formed were linked to amino-functionalized lipids, solids or proteins.

Diethyl squarate Preparation Products And Raw materials

Raw materials

Preparation Products

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Diethyl squarate Suppliers

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View Lastest Price from Diethyl squarate manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
Diethyl squarate 5231-87-8
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-29
Henan Aochuang Chemical Co.,Ltd.
Product
Diethyl squarate 5231-87-8
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
1ton
Release date
2022-09-19
Zhuozhou Wenxi import and Export Co., Ltd
Product
Diethyl squarate 5231-87-8
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-08-11

5231-87-8, Diethyl squarateRelated Search:

DIETHYL PHOSPHATE Diethyl maleate Quinocetone Diethyl ethylmalonate Norandrostenedione Trenbolone Gestodene BUTYL OLEATE Diethyl malonate Diethyl pimelate Diethyl succinosuccinate Diethyl cyanomethylphosphonate Clethodim Diethyl methylmalonate Methyl acrylate Tris(trimethylsilyl)phosphate Androstenedione Squaric acid

  • 3,4-DIETHOXYCYCLOBUTANE-1,2-DIONE
  • Diethyl squarate, Squaric acid diethyl ester
  • SQUARIC ACID DIETHYL ESTER,(DIETHYL SQUARATE, 3,4-DIETHOXY-3-CYCLOBUTENE-1,2-DIONE)
  • DIETHOXYCYCLOBUTENEDIONE
  • 3,4-DIETHOXY-3-CYCLOBUTENE-1,2-DIONE 98%
  • SQUARICACIDDIETHYLESTER/3,4-DIETHOXY-3-CYCLOBUTENE-1,2-DIONE
  • 3,4-Diethoxy-3-cyclobuten-1,2-dion
  • Diethyl quadratate
  • 3,4-Diethoxy-3-Cyclobutene-1,2-Dione Diethyl Squarate
  • 3,4-DIETHOXY-3-CYCLOBUTENE-1,2-DIONE, 98 %
  • DiethylSquarate98%
  • Diethyl squarate, 1,2-Diethoxy-3,4-dioxocyclobut-1-ene
  • Diethyl Suquarate Suquaric Acid Diethyl Ester
  • 3,4-Diethoxy-3-cyclobuten-1,2-dione
  • Diethylsquarate[3,4-Diethoxy-3-cyclobutene-1,2-dione]
  • DIETHYL SQUARATE
  • DIETHYL SUQUARATE
  • 3,4-DIETHOXY-3-CYCLOBUTENE-1,2-DIONE
  • 3,4-DIETHOXYCYCLOBUT-3-ENE-1,2-DIONE
  • 1,2-DIETHOXYCYCLOBUTENEDIONE
  • SQUARIC ACID DIETHYL ESTER
  • SUQUARIC ACID DIETHYL ESTER
  • TIMTEC-BB SBB008498
  • 3-Cyclobutene-1,2-dione, 3,4-diethoxy-
  • SQUARIC ACID DIETHYL ESTER,(DIETHYL SQUARATE, 3,4-DIETHOXY-3-CYCLO
  • SQUARIC ACID DIETHYL ESTER,(DIETHYL SQUARATE, 3,4-DIETHOXY-
  • Diethyl squarate in stock Factory
  • 3,4-Diethoxycyclobut-3-ene-1,2-dione 98%
  • diethoxycyclobut-3-ene-1,2-dione
  • 3,4-Diethoxy-3-cyclobutene-1,2-dione&gt
  • 3,4-DiethoxycycL
  • obut-3-ene-1,2-dione
  • TIANFU-CHEM CAS:5231-87-8 Diethyl squarate
  • 5231-87-8
  • C2H5O2C4O2
  • Simple 4-Membered Ring Compounds
  • C7 to C8
  • Carbonyl Compounds
  • Building Blocks
  • Cyclobutanes & Cyclobutenes
  • Organic Building Blocks
  • Ketones
  • Cyclobutanes & Cyclobutenes
  • Simple 4-Membered Ring Compounds
  • Ring Systems
  • Aluminium foil bag/Fluoride bottle or on your request