Product Identification

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 Properties

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 Measures

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 Storage

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 Identification

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 Protection

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 Measures

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 Measures

Small spills/leaks

Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.

Stability and Reactivity

Disposal Code

3

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, strong bases.

Decomposition

Carbon monoxide, carbon dioxide.

Transport Information

UN Number

3261

HS Code

2914 40 90