Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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3-Methyl-1H-indole(83-34-1)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
3-Methyl-1H-indole
Synonyms
3-Methyl-1H-indole
3-MI
beta-Methylindole
Scatole
Skatol
Skatole
CAS
83-34-1
Formula
C9H9N
Molecular Weight
131.18
EINECS
201-471-7
RTECS
NM0350000
RTECS Class
Other
Merck
12,8700
Beilstein/Gmelin
111296
Beilstein Reference
5-20-07-00069

Physical and Chemical Properties

Appearance
Characteristic fecal odor at high levels. Off-white flakes.
Solubility in water
0.45 g/L
Melting Point
95 - 97
Boiling Point
265
Vapor Pressure
.006
Density
1.003 g/cm3 (99.6 C)
Usage
Species- and organ-selective pneumotoxin.
Refractive Index
1.5666 (100 C)

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. Get medical aid if cough or other symptoms appear.
Skin
Get medical aid if irritation develops or persists. Flush skin with plenty of soap and water.
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 with adequate ventilation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification

Ingestion
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
Inhalation
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
Skin
May cause skin irritation.
Eyes
May cause eye irritation.
EC Safety Phrase
S 22 24/25
UN (DOT)
3335

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
A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149. 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
132
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use water spray, dry chemical, or carbon dioxide.
Fire Potential
Flammable.

Accidental Release Measures

Small spills/leaks
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.

Stability and Reactivity

Disposal Code
3
Stability
Stable under normal shipping and handling conditions. Substance undergoes color change upon exposure to light and air.
Incompatibilities
Strong oxidizing agents, acids, acid chlorides, acid anhydrides..
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Transport Information

UN Number
3335
HS Code
2933 99 20
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