Product Identification

Product Name

1,5-Pentamethylene-1H-tetrazole

Synonyms

1,5-Pentamethylenetetrazole
6,7,8,9-Tetrahydro-5H-tetrazoloazepine
7,8,9,10-Tetrazabicyclo[5.3.0]-8,10-decadiene
Cardiazole
Pentetrazole
Pentylenetetrazole

CAS

54-95-5

Formula

C6H10N4

Molecular Weight

138.16999999999999

EINECS

200-219-3

RTECS

XF8225000

RTECS Class

Drug; Human Data

Merck

12,7283

Beilstein/Gmelin

135492

Beilstein Reference

4-26-00-01713

Physical and Chemical Properties

Appearance

White crystalline powder or granular solid with a slightly pungent odor. Bitter taste. Aqueous solutions neutral to litmus.

Solubility in water

Soluble

Melting Point

60

Boiling Point

339

Vapor Pressure

0.0001 (25 C)

Density

1.73 g/cm3 (20 C)

Partition Coefficient

.14

Heat Of Vaporization

58.3 kJ/mol

Usage

Analeptic.

Refractive Index

1.494 (20 C)

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

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. Wash clothing before reuse.

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. Store protected from moisture.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Do not allow contact with water. Keep from contact with moist air and steam.

Hazards Identification

Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

May cause skin irritation. The toxicological properties of this material have not been fully investigated.

Eyes

May cause eye irritation.

Ingestion

Harmful if swallowed. May cause irritation of the digestive tract.

Hazards

Contact with metals may evolve flammable hydrogen gas.

EC Risk Phrase

R 23/24/25

EC Safety Phrase

S 22 36/37 45

UN (DOT)

2811

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.

Exposure Effects

Repeated or prolonged exposure may cause CNS stimulation.

Fire Fighting Measures

Flash Point

159

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. Do NOT get water inside containers. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential

This material is probably combustible.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation. Do not get water inside containers.

Stability and Reactivity

Incompatibilities

Oxidizing agents.

Stability

Stable under normal temperatures and pressures.

Decomposition

Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

2811

Hazard Class

6.1

Packing Group

I; II; III