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ChemicalBook >> CAS DataBase List >> Squaric acid

Squaric acid

Squaric acid price.
  • $5 - $2178
  • Product name: Squaric acid
  • CAS: 2892-51-5
  • MF: C4H2O4
  • MW: 114.06
  • EINECS:220-761-4
  • MDL Number:MFCD00001334
  • Synonyms:4-dihydroxy-3-cyclobutene-1;3,4-Dihydroxy-3-cyclobuten-1,2-dion;3,4-Dihydroxy-3-cyclobutene-1,2-dione, 99% 25GR;3,4-Dihydroxy-3-cyclobutene-1,2-dione, 99% 5GR;dihydroxy-cyclobutenedion ;dihydroxycyclobutenedione ;3,4-DIHYDROXY-3-CYCLOBUTEN-1,2-DIONE;1-Cyclobutene-3,4-dione-1,2-diol Squaric Acid
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  • AHH
  • AK Scientific
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  • Ambeed
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  • Arctom
  • Atlantic Research Chemicals
  • Biosynth Carbosynth
  • Chemenu
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  • ManufacturerAHH
  • Product numberMT-22381
  • Product descriptionSquaricacid 99%
  • Packaging1000g
  • Price$2178
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ92478
  • Product description3,4-Dihydroxy-3-cyclobutene-1,2-dione
  • Packaging500g
  • Price$560
  • Updated2021-12-16
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA15169
  • Product description3,4-Dihydroxy-3-cyclobutene-1,2-dione, 98+%
  • Packaging1g
  • Price$22.65
  • Updated2024-03-01
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA15169
  • Product description3,4-Dihydroxy-3-cyclobutene-1,2-dione, 98+%
  • Packaging5g
  • Price$51.65
  • Updated2024-03-01
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA15169
  • Product description3,4-Dihydroxy-3-cyclobutene-1,2-dione, 98+%
  • Packaging25g
  • Price$212
  • Updated2024-03-01
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA15169
  • Product description3,4-Dihydroxy-3-cyclobutene-1,2-dione, 98+%
  • Packaging100g
  • Price$592
  • Updated2024-03-01
  • Buy
  • ManufacturerAmbeed
  • Product numberA242729
  • Product description3,4-Dihydroxy-3-cyclobutene-1,2-dione 98%
  • Packaging1g
  • Price$5
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA242729
  • Product description3,4-Dihydroxy-3-cyclobutene-1,2-dione 98%
  • Packaging5g
  • Price$11
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA242729
  • Product description3,4-Dihydroxy-3-cyclobutene-1,2-dione 98%
  • Packaging10g
  • Price$17
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA242729
  • Product description3,4-Dihydroxy-3-cyclobutene-1,2-dione 98%
  • Packaging25g
  • Price$31
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA242729
  • Product description3,4-Dihydroxy-3-cyclobutene-1,2-dione 98%
  • Packaging100g
  • Price$105
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA242729
  • Product description3,4-Dihydroxy-3-cyclobutene-1,2-dione 98%
  • Packaging500g
  • Price$490
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR28821
  • Product description3,4-Dihydroxycyclobut-3-ene-1,2-dione
  • Packaging25g
  • Price$37
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR28821
  • Product description3,4-Dihydroxycyclobut-3-ene-1,2-dione
  • Packaging100g
  • Price$90
  • Updated2021-12-16
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  • ManufacturerApolloscientific
  • Product numberOR28821
  • Product description3,4-Dihydroxycyclobut-3-ene-1,2-dione
  • Packaging500g
  • Price$351
  • Updated2021-12-16
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  • ManufacturerArctom
  • Product numberAS059426
  • Product description3,4-Dihydroxy-3-cyclobutene-1,2-dione 98%
  • Packaging1g
  • Price$5
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AHH MT-22381 Squaricacid 99% 1000g $2178 2021-12-16 Buy
AK Scientific J92478 3,4-Dihydroxy-3-cyclobutene-1,2-dione 500g $560 2021-12-16 Buy
Alfa Aesar A15169 3,4-Dihydroxy-3-cyclobutene-1,2-dione, 98+% 1g $22.65 2024-03-01 Buy
Alfa Aesar A15169 3,4-Dihydroxy-3-cyclobutene-1,2-dione, 98+% 5g $51.65 2024-03-01 Buy
Alfa Aesar A15169 3,4-Dihydroxy-3-cyclobutene-1,2-dione, 98+% 25g $212 2024-03-01 Buy
Alfa Aesar A15169 3,4-Dihydroxy-3-cyclobutene-1,2-dione, 98+% 100g $592 2024-03-01 Buy
Ambeed A242729 3,4-Dihydroxy-3-cyclobutene-1,2-dione 98% 1g $5 2021-12-16 Buy
Ambeed A242729 3,4-Dihydroxy-3-cyclobutene-1,2-dione 98% 5g $11 2021-12-16 Buy
Ambeed A242729 3,4-Dihydroxy-3-cyclobutene-1,2-dione 98% 10g $17 2021-12-16 Buy
Ambeed A242729 3,4-Dihydroxy-3-cyclobutene-1,2-dione 98% 25g $31 2021-12-16 Buy
Ambeed A242729 3,4-Dihydroxy-3-cyclobutene-1,2-dione 98% 100g $105 2021-12-16 Buy
Ambeed A242729 3,4-Dihydroxy-3-cyclobutene-1,2-dione 98% 500g $490 2021-12-16 Buy
Apolloscientific OR28821 3,4-Dihydroxycyclobut-3-ene-1,2-dione 25g $37 2021-12-16 Buy
Apolloscientific OR28821 3,4-Dihydroxycyclobut-3-ene-1,2-dione 100g $90 2021-12-16 Buy
Apolloscientific OR28821 3,4-Dihydroxycyclobut-3-ene-1,2-dione 500g $351 2021-12-16 Buy
Arctom AS059426 3,4-Dihydroxy-3-cyclobutene-1,2-dione 98% 1g $5 2021-12-16 Buy

Properties

Melting point :>300 °C(lit.)
Boiling point :250.96°C
Density :1.82 g/cm3
refractive index :1.5800 (estimate)
Flash point :190 °C
storage temp. :Inert atmosphere,Room Temperature
solubility :20g/l
pka :1.5??(at 25℃)
form :Crystalline Powder
color :White to beige
PH :1 (1g/l, H2O, 20℃)
Water Solubility :20 g/L (30 ºC)
Merck :14,8769
BRN :774275
InChIKey :PWEBUXCTKOWPCW-UHFFFAOYSA-N
CAS DataBase Reference :2892-51-5(CAS DataBase Reference)
NIST Chemistry Reference :3-Cyclobutene-1,2-dione, 3,4-dihydroxy-(2892-51-5)
EPA Substance Registry System :3-Cyclobutene-1,2-dione, 3,4-dihydroxy- (2892-51-5)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger GHS hazard pictograms P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

3,4-Dihydroxy-3-cyclobutene-1,2-dione is used to produce diethoxy-cyclobutenedione by heating, pharmaceutical intermediates, squarylium dyes, and photoconducting squaraines; The dibutylester is used as a contact sensitizer in the treatment of alopecia and warts.

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