Propionyl Chloride CAS 79-03-8

Aure Chemical Delivers Reliable Propionyl chloride (CAS 79-03-8) at Consistent Quality

Propionyl chloride (CAS 79-03-8), also known as propanoyl chloride, is a reactive acyl chloride widely utilized as a key intermediate and propionylating agent in organic synthesis. This colorless to pale yellow liquid with a pungent odor serves industries requiring precise introduction of the propionyl group in high-value chemical manufacturing.

Basic Information

CAS No.	79-03-8
EC No.	201-170-0
Linear Formula	CH3CH2COCl
Molecular Weight	92.52 g/mol
Appearance	Colorless liquid
Melting Point	-94 °C (lit.)
Boiling point	77-79 °C (lit.)
Density	1.059 g/mL at 25 °C (lit.)
RIDADR	UN 1815 Class 3 (8) Packing Group II
Chemical Structure

Key Applications

• Pharmaceutical intermediates: Critical acylating agent used in the synthesis of active pharmaceutical ingredients and drug precursors requiring the propionyl moiety.

• Agrochemical production: Key building block for manufacturing herbicides, insecticides, and other crop protection agents.

• Organic synthesis reagent: Preferred propionylating agent for preparation of esters, amides, and ketones in both laboratory and industrial scales.

• Specialty chemicals & dyes: Employed in the production of pigments, dyes, and fine chemicals through efficient acylation reactions.

• Research & development: Essential reagent in medicinal chemistry and material science for targeted propionyl group introduction.

Aure Chemical: Your Reliable Partner

• Strict Quality Assurance: Each batch undergoes rigorous testing with Certificate of Analysis (COA) guaranteeing ≥98% purity and consistent specifications.

• Global Supply Network: Efficient logistics ensuring stable bulk supply and on-time delivery to customers worldwide.

• Full Compliance Support: Comprehensive SDS, MSDS, and regulatory documentation provided for safe handling and international trade.

• Dedicated Technical Service: Expert team available for product inquiries, custom packaging, and application guidance.

Hazards Classification

GHS Classification: Flammable liquids Category 2; Skin corrosion Category 1B; Serious eye damage Category 1; Acute toxicity (oral) Category 4; Acute toxicity (inhalation - vapors) Category 3; Specific target organ toxicity (single exposure) Category 3 (respiratory tract irritation).

Hazard Statements: H225 Highly flammable liquid and vapor; H302 Harmful if swallowed; H314 Causes severe skin burns and eye damage; H331 Toxic if inhaled; H335 May cause respiratory irritation.

UN Number: 1815

Hazard Class: 3 (Flammable liquids) with subsidiary risk 8 (Corrosive)

Packing Group: II

Moisture-sensitive material. Reacts violently with water releasing toxic HCl gas. Store in a cool, dry, well-ventilated area under inert atmosphere in tightly closed containers. Keep away from heat, sparks, open flames, bases, and oxidizers. Use only in fume hood with appropriate PPE.