Product Identification

Product Name

2-Oxy-4-amino pyrimidine

Synonyms

4-Amino-2(1H)-pyrimidinone
4-Amino-2-hydroxypyrimidine
4-Amino-2-oxo-1,2-dihydropyrimidine
4-Amino-3H-pyrimidin-2-one
4-Aminouracil
Cytosinimine

CAS

71-30-7

Formula

C4H5N3O

Molecular Weight

111.1

EINECS

200-749-5

RTECS

UW7350150

RTECS Class

Mutagen

Merck

13,2824

Beilstein/Gmelin

2637

Beilstein Reference

4-25-00-03654

Physical and Chemical Properties

Appearance

White solid.

Solubility in water

Very soluble

Melting Point

313 - 316

Vapor Pressure

0.01 (232 C)

Density

0.98631 - 0.99771 g/cm3 (55 - 25 C)

pKa/pKb

9.40 (pKb)

Partition Coefficient

-1.65

Usage

Nitrogenous base.

First Aid Measures

Ingestion

Do NOT induce vomiting. 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 if irritation or symptoms occur.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid.

Handling and Storage

Storage

Store in a cool, dry place. Store in a tightly closed container.

Handling

Use with adequate ventilation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.

Hazards Identification

Ingestion

No hazard expected in normal industrial use. Ingestion of large amounts may cause gastrointestinal irritation.

Inhalation

No hazard expected in normal industrial use. May cause respiratory tract irritation.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

EC Safety Phrase

S 22 24/25

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 minimize contact with skin.

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

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, oxides of nitrogen, carbon dioxide.