3,4-Diethoxy-3-cyclobutene-1,2-dione
- 3,4-Diethoxy-3-cyclobutene-1,2-dione
- 5231-87-8
- Diethyl squarate
- 3,4-diethoxycyclobut-3-ene-1,2-dione
- Squaric acid diethyl ester
- Create:2005-03-27
- Modify:2025-01-11
- diethoxycyclobutenedione
- squaric acid diethyl ester
- 3,4-Diethoxy-3-cyclobutene-1,2-dione
- 5231-87-8
- Diethyl squarate
- 3,4-diethoxycyclobut-3-ene-1,2-dione
- Squaric acid diethyl ester
- 3-Cyclobutene-1,2-dione, 3,4-diethoxy-
- diethoxycyclobut-3-ene-1,2-dione
- 1,2-diethoxycyclobutenedione
- MFCD00001333
- Diethoxycyclobutenedione
- 3,4-Diethoxy-cyclobut-3-ene-1,2-dione
- SCHEMBL94221
- DFSFLZCLKYZYRD-UHFFFAOYSA-
- DTXSID30200334
- 1,2-diethoxycyclobutene-3,4-dione
- 3,4-diethoxy-3-cyclobuten-1,2-dion
- AKOS015905438
- 3,4-diethoxy-3-cyclobuten-1,2-dione
- CS-W004755
- PS-4470
- 3,4-diethoxy-3 cyclobutene-1,2-dione
- 3.4-diethoxy-3-cyclobutene-1,2-dione
- 3,4-diethyoxy-3-cyclobutene-1,2-dione
- 3,4,-diethoxy-3-cyclobutene-1,2-dione
- AC-22926
- BP-13098
- SY013529
- DB-006276
- D3253
- 3,4-Diethoxy-3-cyclobutene-1,2-dione, 98%
- EN300-215540
- J-511148
- 3 pound not4-Diethoxy-3-cyclobutene-1 pound not2-dione
- InChI=1/C8H10O4/c1-3-11-7-5(9)6(10)8(7)12-4-2/h3-4H2,1-2H3
- Diethyl squarate; 3,4-Diethoxycyclobut-3-ene-1,2-dione; 3:4-diethoxycyclobut-3-ene-1:2-dione
H301 (19%): Toxic if swallowed [Danger Acute toxicity, oral]
H312 (19%): Harmful in contact with skin [Warning Acute toxicity, dermal]
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
H317 (98.3%): May cause an allergic skin reaction [Warning Sensitization, Skin]
H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H334 (29.3%): May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]
H335 (98.3%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
P233, P260, P261, P264, P264+P265, P270, P271, P272, P280, P284, P301+P316, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P333+P317, P337+P317, P342+P316, P362+P364, P403, P403+P233, P405, and P501
(The corresponding statement to each P-code can be found at the GHS Classification page.)
Aggregated GHS information provided per 58 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown.
Acute Tox. 3 (19%)
Acute Tox. 4 (19%)
Skin Irrit. 2 (100%)
Skin Sens. 1 (98.3%)
Eye Irrit. 2A (100%)
Resp. Sens. 1 (29.3%)
STOT SE 3 (98.3%)
Patents are available for this chemical structure:
https://patentscope.wipo.int/search/en/result.jsf?inchikey=DFSFLZCLKYZYRD-UHFFFAOYSA-N
- CAS Common ChemistryLICENSEThe data from CAS Common Chemistry is provided under a CC-BY-NC 4.0 license, unless otherwise stated.https://creativecommons.org/licenses/by-nc/4.0/Diethyl squaratehttps://commonchemistry.cas.org/detail?cas_rn=5231-87-8
- ChemIDplusSquaric acid diethyl esterhttps://pubchem.ncbi.nlm.nih.gov/substance/?source=chemidplus&sourceid=0005231878ChemIDplus Chemical Information Classificationhttps://pubchem.ncbi.nlm.nih.gov/source/ChemIDplus
- EPA DSSToxSquaric acid diethyl esterhttps://comptox.epa.gov/dashboard/DTXSID30200334CompTox Chemicals Dashboard Chemical Listshttps://comptox.epa.gov/dashboard/chemical-lists/
- European Chemicals Agency (ECHA)LICENSEUse of the information, documents and data from the ECHA website is subject to the terms and conditions of this Legal Notice, and subject to other binding limitations provided for under applicable law, the information, documents and data made available on the ECHA website may be reproduced, distributed and/or used, totally or in part, for non-commercial purposes provided that ECHA is acknowledged as the source: "Source: European Chemicals Agency, http://echa.europa.eu/". Such acknowledgement must be included in each copy of the material. ECHA permits and encourages organisations and individuals to create links to the ECHA website under the following cumulative conditions: Links can only be made to webpages that provide a link to the Legal Notice page.https://echa.europa.eu/web/guest/legal-noticediethoxycyclobut-3-ene-1,2-dionehttps://echa.europa.eu/substance-information/-/substanceinfo/100.157.763diethoxycyclobut-3-ene-1,2-dione (EC: 629-595-0)https://echa.europa.eu/information-on-chemicals/cl-inventory-database/-/discli/details/162477
- Japan Chemical Substance Dictionary (Nikkaji)
- NIST Mass Spectrometry Data CenterLICENSEData covered by the Standard Reference Data Act of 1968 as amended.https://www.nist.gov/srd/public-law3,4-Diethoxy-3-cyclobutene-1,2-dionehttp://www.nist.gov/srd/nist1a.cfm
- SpectraBase3-CYCLOBUTENE-1,2-DIONE, 3,4-DIETHOXY-https://spectrabase.com/spectrum/93dUpZiI9Sz3,4-Diethoxy-3-cyclobutene-1,2-dionehttps://spectrabase.com/spectrum/63LnOkYzaiSDIETHOXYCYCLOBUTENEDIONEhttps://spectrabase.com/spectrum/EftPBIuRT8CDiethoxy-cyclobutenedionehttps://spectrabase.com/spectrum/4PU8PPayCQS3,4-diethoxy-3-cyclobutene-1,2-dionehttps://spectrabase.com/spectrum/4Rn42kuziKD3,4-Diethoxy-3-cyclobutene-1,2-dionehttps://spectrabase.com/spectrum/LWePPylCRkl3,4-DIETHOXY-3-CYCLOBUTENE-1,2-DIONEhttps://spectrabase.com/spectrum/EtLic6f99tW3,4-Diethoxy-3-cyclobutene-1,2-dionehttps://spectrabase.com/spectrum/jJiG5asOlp3,4-Diethoxy-3-cyclobutene-1,2-dionehttps://spectrabase.com/spectrum/GPr0ITKTF5u3,4-Diethoxy-3-cyclobutene-1,2-dionehttps://spectrabase.com/spectrum/7L8A5Qw2eTj3,4-Diethoxy-3-cyclobutene-1,2-dionehttps://spectrabase.com/spectrum/63dg0WgsCV9
- NMRShiftDB
- Springer Nature
- Thieme ChemistryLICENSEThe Thieme Chemistry contribution within PubChem is provided under a CC-BY-NC-ND 4.0 license, unless otherwise stated.https://creativecommons.org/licenses/by-nc-nd/4.0/
- WikidataDiethyl squaratehttps://www.wikidata.org/wiki/Q72462193
- PubChem
- Medical Subject Headings (MeSH)LICENSEWorks produced by the U.S. government are not subject to copyright protection in the United States. Any such works found on National Library of Medicine (NLM) Web sites may be freely used or reproduced without permission in the U.S.https://www.nlm.nih.gov/copyright.htmlsquaric acid diethyl esterhttps://www.ncbi.nlm.nih.gov/mesh/67014194
- GHS Classification (UNECE)GHS Classification Treehttp://www.unece.org/trans/danger/publi/ghs/ghs_welcome_e.html
- MolGenieMolGenie Organic Chemistry Ontologyhttps://github.com/MolGenie/ontology/
- PATENTSCOPE (WIPO)SID 388563768https://pubchem.ncbi.nlm.nih.gov/substance/388563768