Note: Ingredients listed on restricted chemical lists
EC/CAS
338-64-7
Name of the chemical
Ethane, 1-chloro-1,2-difluoro
Concentration
≤100
General Information
Version
1.3
Revision date
2026-07-17
Product name
1-Chloro-1,2-difluoroethane
Substance name
1-Chloro-1,2-difluoroethane
Product Synonyms
HCFC-142a
CAS No.
338-64-7
supplier name
SynQuest Laboratories, Inc
Icons in SDS
Company Information
company name
SynQuest Laboratories, Inc
e-mail address of the competent person responsible for the Safety Data Sheet
info@synquestlabs.com
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H221, H280, H300, H315, H319, H335, H420
Hazard statements
Code
Statements
H221
Flammable gas
Section 2
SECTION 2: Hazards identification
Classification of the substance or mixture GHS US classification Flammable gases, Category 2 H221 Flammable gas. Gases under pressure : Liquefied gas H280 Contains gas under pressure; may explode if heated. Acute toxicity (oral), Category 1 H300 Fatal if swallowed. Skin corrosion/irritation, Category 2 H315 Causes skin irritation. Serious eye damage/eye irritation, Category 2A H319 Causes serious eye irritation. Specific target organ toxicity – Single exposure, Category 3, H335 May cause respiratory irritation. Respiratory tract irritation Hazardous to the ozone layer — Category 1 H420 Harms public health and the environment by destroying ozone in the upper atmosphere Full text of H statements : see section 16
2.2 Label elements
GHS US labeling
Signal word
Danger
Hazard statements
H221 - Flammable gas H280 - Contains gas under pressure; may explode if heated H300 - Fatal if swallowed H315 - Causes skin irritation H319 - Causes serious eye irritation H335 - May cause respiratory irritation H420 - Harms public health and the environment by destroying ozone in the upper atmosphere
Precautionary statements
P210 - Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P261 - Avoid breathing fumes, gas, mist, spray, vapors. P264 - Wash hands, forearms and face thoroughly after handling. P270 - Do not eat, drink or smoke when using this product. P271 - Use only outdoors or in a well-ventilated area. P280 - Wear protective gloves. P301+P310 - If swallowed: Immediately call a poison center or doctor. P302+P352 - If on skin: Wash with plenty of soap and water P304+P340 - If inhaled: Remove person to fresh air and keep comfortable for breathing. P305+P351+P338 - If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing P312 - Call a POISON CENTER or doctor/physician if you feel unwell P321 - Specific treatment (see supplemental first aid instruction on this label). P330 - Rinse mouth. P332+P313 - If skin irritation occurs: Get medical advice or attention. P337+P313 - If eye irritation persists: Get medical advice or attention. P362+P364 - Take off contaminated clothing and wash it before reuse. P377 - Leaking gas fire: Do not extinguish, unless leak can be stopped safely. P381 - In case of leakage, eliminate all ignition sources. P403 - Store in a well-ventilated place. P403+P233 - Store in a well-ventilated place. Keep container tightly closed. P405 - Store locked up. P410+P403 - Protect from sunlight. Store in a well-ventilated place. P501 - Dispose of contents and/or container to hazardous or special waste collection point, in accordance with local, regional, national and/or international regulations. P502 - Refer to manufacturer, importer, or distributor for information on recovery or recycling. 2.3. Hazards associated with known or reasonably anticipated uses No additional information available
2.3 Other hazards
No additional information available 2.5. Unknown acute toxicity No additional information available
2.1 Classification of the substance or mixture
GHS US classification Flammable gases, Category 2 H221 Flammable gas. Gases under pressure : Liquefied gas H280 Contains gas under pressure; may explode if heated. Acute toxicity (oral), Category 1 H300 Fatal if swallowed. Skin corrosion/irritation, Category 2 H315 Causes skin irritation. Serious eye damage/eye irritation, Category 2A H319 Causes serious eye irritation. Specific target organ toxicity – Single exposure, Category 3, H335 May cause respiratory irritation. Respiratory tract irritation Hazardous to the ozone layer — Category 1 H420 Harms public health and the environment by destroying ozone in the upper atmosphere. Full text of H statements : see section 16