ChemicalBook >>Squaric acid>>3,4-Dihydroxy-3-cyclobutene-1,2-dione(2892-51-5)

3,4-Dihydroxy-3-cyclobutene-1,2-dione(2892-51-5)

3,4-Dihydroxy-3-cyclobutene-1,2-dione(2892-51-5)
Product IdentificationBack to Contents
【Product Name】

3,4-Dihydroxy-3-cyclobutene-1,2-dione
【Synonyms】

1,2-Diketo-3,4-dihydroxycyclobutene
3,4-Dihydroxy-3-cyclobutene-1,2-dione
3,4-Dihydroxycyclobutene-1,2-dione
Dihydroxycyclobutenedione
Quadratic acid
【CAS】

2892-51-5
【Formula】

C4H2O4
【Molecular Weight】

114.06
【EINECS】

220-761-4
【RTECS】

GU1800000
【RTECS Class】

Tumorigen
【Beilstein/Gmelin】

774275
【Beilstein Reference】

4-08-00-02701
【EC Class】

corrosive
Physical and Chemical PropertiesBack to Contents
【Appearance】

odorless slightly beige solid
【Solubility in water】

Very soluble
【Melting Point】

293
【Vapor Pressure】

0.075 (20 C)
【Density】

1 g/cm3 (20 C)
【pKa/pKb】

0.52 (pKa)
【Usage】

Treatment of warts and autoimmune hair loss.
First Aid MeasuresBack to Contents
【Ingestion】

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
【Inhalation】

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
【Eyes】

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Handling and StorageBack to Contents
【Storage】

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】

Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Hazards IdentificationBack to Contents
【Ingestion】

The toxicological properties of this substance have not been fully investigated.
【Inhalation】

The toxicological properties of this substance have not been fully investigated.
【Skin】

May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.
【Eyes】

May cause eye irritation.
【EC Risk Phrase】

R 34
【EC Safety Phrase】

S 26 36/37/39 45
【UN (DOT)】

3261
Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Fire Fighting MeasuresBack to Contents
【Flash Point】

190
【Autoignition】

400
【Fire Fighting】

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use foam, dry chemical, or carbon dioxide.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.
Stability and ReactivityBack to Contents
【Disposal Code】

3
【Stability】

Stable under normal temperatures and pressures.
【Incompatibilities】

Strong oxidizing agents, strong bases.
【Decomposition】

Carbon monoxide, carbon dioxide.
Transport InformationBack to Contents
【UN Number】

3261
【HS Code】

2914 40 90
Company Name: Originchem Co., Ltd
Tel: 0523-0523-86200346 15996028822
Fax: 0523-86200341
WebSite: http://www.originchem.com/
Company Name: Zhoushan Aike Biotechnology Co., Ltd.
Tel: 0575-85624575 18957583039
Fax:
WebSite: www.aikebiotech.com/
Company Name: Fuyang Sineva Pharmaceutical Co., Ltd
Tel: 0558-2919017; 13866224493
Fax:
WebSite: https://www.sinevapt.com
Company Name: Jiangxi Boye Medical Technology Co., Ltd
Tel: 15387090420 15387090420
Fax:
WebSite: www.boyechemicals.com/
Company Name: Shanghai Huichu Chemical Technology Co., Ltd
Tel: 021-57188992 13917817467
Fax: 021-5718892
WebSite: http://www.huichuchem.com
Company Name: Jiangxi Boye Medical Technology Co., Ltd
Tel: 18971341812/18971341812 18971341812
Fax: 027-81625225
WebSite: www.boyepharm.com/
Company Name: Wuhan Boye Technology Development Co., Ltd.
Tel: 027-81625225 15377010747
Fax: 027-81625225
WebSite: https://www.boyechemicals.com/
Company Name: Birdo (Shanghai) Medical Technology Co., Ltd.
Tel: 021-021-021-58099077-8102-8041-8041 18601625411
Fax:
WebSite: product.birdotech.com/