1-Chloro-1,2-difluoroethane

SynQuest Laboratories, Inc

Revision date : 2026-07-17

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GHS04 GHS06 GHS07
Health risk rating 5
Safety risk rating 4
Environmental risk rating 5

Note: Ingredients listed on restricted chemical lists

EC/CAS

338-64-7

Name of the chemical

Ethane, 1-chloro-1,2-difluoro

Concentration

≤100

Listed in

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

GHS04 GHS06 GHS07 M004 M009 M010 M013 T017

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

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