General Information
Version
4
Revision date
2025-12-21
Product name
4-Chlorophenyl isocyanate
Product Synonyms
p-Chlorophenyl isocyanate; 1-Chloro-4-isocyanatobenzene; 4-Chloroisocyanatobenzene
CAS No.
104-12-1
Emergency telephone
001-800-227-6701, +32 14 57 52 11, 001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887
Icons in SDS
Company Information
company name
Thermo Fisher Scientific Chemicals, Inc
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H301, H315, H318, H330, H334, H335
Hazard statements
Code
Statements
H301
Toxic if swallowed
Section 2
SECTION 2: Hazards identification
(29 CFR 1910.1200) Classification
Signal word
Danger
Hazard statements
Toxic if swallowed Causes skin irritation Causes serious eye damage Fatal if inhaled May cause allergy or asthma symptoms or breathing difficulties if inhaled May cause respiratory irritation
Prevention
Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product Do not breathe dust/fume/gas/mist/vapors/spray Use only outdoors or in a well-ventilated area Wear respiratory protection Wear protective gloves/protective clothing/eye protection/face protection In case of inadequate ventilation wear respiratory protection Inhalation IF INHALED: Remove person to fresh air and keep comfortable for breathing Immediately call a POISON CENTER or doctor Call a POISON CENTER or doctor if you feel unwell Skin IF ON SKIN: Wash with plenty of soap and water If skin irritation occurs: Get medical advice/attention Take off contaminated clothing Eyes IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing Immediately call a POISON CENTER or doctor/physician Ingestion IF SWALLOWED: Immediately call a POISON CENTER or doctor Rinse mouth
Storage
Store locked up Store in a well-ventilated place. Keep container tightly closed
Disposal
Dispose of contents/container to an approved waste disposal plant
2.3 Other hazards
Very toxic to aquatic life with long lasting effects
2.1 Classification of the substance or mixture
This chemical is considered hazardous according to [US] OSHA (29 CFR 1910.1200, 2024) Acute oral toxicity Category 3 Acute Inhalation Toxicity - Dusts and Mists Category 2 Skin Corrosion/Irritation Category 2 Serious Eye Damage/Eye Irritation Category 1 Respiratory Sensitization Category 1 Specific target organ toxicity (single exposure) Category 3 Target Organs - Respiratory system.
