Product Identification

Product Name

5-Phenylcarbamoylamino-1,2,3-thiadiazole

Synonyms

1-Phenyl-3-(1,2,3-thiadiazol-5-yl)urea
N-Phenyl-N'-1,2,3-thiadiazol-5-yl urea

CAS

51707-55-2

Formula

C9H8N4OS

Molecular Weight

220.25

EINECS

257-356-7

RTECS

YU1395000

RTECS Class

Agricultural Chemical and Pesticide; Reproductive Effector

Merck

12,9447

Beilstein/Gmelin

1078092

Beilstein Reference

6-27

Physical and Chemical Properties

Solubility in water

Slightly soluble

Melting Point

217

pKa/pKb

10.06 (pKa)

Usage

Cotton defoliant.

First Aid Measures

Ingestion

If swallowed, wash out mouth with water provided person is conscious. Call a physician.

Inhalation

If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.

Skin

In case of contact, immediately wash skin with soap and copious amounts of water.

Eyes

In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Handling and Storage

Storage

Keep tightly closed.

Hazards Identification

Inhalation

Material is irritating to mucous membranes and upper

Skin

Causes skin irritation. May be harmful if absorbed through the skin.

Eyes

Causes eye irritation.

Ingestion

May be harmful if swallowed.

Hazards

Emits toxic fumes under fire conditions.

EC Risk Phrase

36/37/38

EC Safety Phrase

22 26 36

Exposure Controls/Personal Protection

Personal Protection

Compatible chemical-resistant gloves.

Respirators

Government approved respirator.

Exposure Effects

Irritant. Irritating to eyes, respiratory system and skin. Target organ(s): Nerves. Kidneys.

Fire Fighting Measures

Fire Fighting

Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Accidental Release Measures

Small spills/leaks

Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Stability

Stable at normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, Carbon dioxide, Nitrogen oxides, Sulfur oxides.