Please login to your online account to display your discounted pricing

Alfa Aesar™ 1-Butyl isocyanate, 97%

Chemical Identifiers

Chemical Name or Material 1-Butyl isocyanate
CAS 111-36-4
Linear Formula CH3CH2CH2CH2NCO
Formula Weight 99.13
MDL Number MFCD00002046
UN Number UN2485
Beilstein 73917
Merck Index 14,1575
View More Specs
Catalog Number Mfr. No. Quantity Price Quantity    


alfa aesar™
25g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to for assistance.
Description & Specifications


Formula Weight 99.13
Boiling Point 112° to 116°C
Chemical Name or Material 1-Butyl isocyanate
CAS 111-36-4
MDL Number MFCD00002046
Assay 97%
UN Number UN2485
Health Hazard 2 GHS H Statement
Highly flammable liquid and vapor.
Fatal if inhaled.
May cause allergy or asthma symptoms or breathing difficulties if inhaled.
Causes severe skin burns and eye damage.
Causes serious eye damage.
Harmful if swallowed.
DOT Information Transport Hazard Class: 6.1; Packaging Group: I; Proper Shipping Name: N-BUTYL ISOCYANATE
Health Hazard 1 Danger
Health Hazard 3 GHS P Statement
Keep away from heat/sparks/open flames/hot surfaces.
- No smoking.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing.
Rinse skin with water/shower.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
IF IN EYES: Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do.
Continue rinsing.
Specific treatment is urgent (see label).
Rinse mouth.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
Refractive Index 1.4060
Sensitivity Moisture Sensitive
Merck Index 14,1575
Linear Formula CH3CH2CH2CH2NCO
RTECS Number NQ8250000
Color Colorless
Density 0.890g/mL
Quantity 25g
Physical Form Liquid
Storage Note 1 2° to 8°C
Beilstein 73917