Product Identification

Product Name

Eltanolone

Synonyms

3a,5b-Tetrahydroprogesterone
3a-Hydroxy-5b-tetrahydroprogesterone
Pregnan-20-one, 3-hydroxy-, (3a,5b)-
Pregnanolone II

CAS

128-20-1

Formula

C21H34O2

Molecular Weight

318.5

RTECS

TU4384000

Merck

12,7910

Beilstein/Gmelin

4785659

Physical and Chemical Properties

Appearance

Solid.

Solubility in water

2.3 mg/L (25 C)

Melting Point

149.5

Boiling Point

431

Vapor Pressure

3.1E-9 (25 C)

Density

1.05 g/cm3 (20 C)

pKa/pKb

15.11 (pKa)

Partition Coefficient

4.89

Heat Of Vaporization

79.26 kJ/mol

Handling and Storage

Storage

Keep tightly closed. Store in a cool dry place.

Hazards Identification

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. Remove contaminated clothing and shoes. Call a physician.

Eyes

In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Ingestion

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

Hazards

Emits toxic fumes under fire conditions.

EC Risk Phrase

40

EC Safety Phrase

22 36

Exposure Controls/Personal Protection

Personal Protection

Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.

Respirators

Wear appropriate government approved respirator.

Fire Fighting Measures

Flash Point

183

Fire Fighting

Extinguish with 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.

Decomposition

Oxides of carbon