1-Methylcyclopropene (1-MCP) Plant Growth Regulator

Product Attribute	Specification
Active Ingredient	1-Methylcyclopropene (1-MCP)
Product Type	Plant Growth Regulator
Functional Category	Ethylene action inhibitor
Chemical Class	Cyclopropene compound
CAS Number	3100-04-7
Molecular Formula	C₄H₆
Mode of Action	Ethylene receptor inhibition
Main Application	Postharvest quality management
Target Use	Fruit storage and ethylene-sensitive products
Available Formulations	Powder, tablet and controlled-release formulations
Application Direction	Postharvest treatment programs
Supply Support	COA, SDS, TDS and technical documents

The available concentration, formulation type, application method and approved crops depend on customer requirements and local regulations.

What Is 1-Methylcyclopropene (1-MCP)?

1-Methylcyclopropene, commonly known as 1-MCP, is a synthetic plant growth regulator used primarily in postharvest management.

Plants naturally produce ethylene, a hormone involved in:

• Fruit ripening;
• Fruit softening;
• Leaf aging;
• Flower senescence;
• Quality changes after harvest.

1-MCP does not remove ethylene from the environment.

Instead, it reduces plant sensitivity to ethylene by interacting with ethylene receptors.

This makes 1-MCP different from traditional plant growth regulators that mainly influence:

• Plant height;
• Root development;
• Flowering;
• Fruit formation.

The primary commercial value of 1-MCP is maintaining harvested product quality during storage and transportation.

How Does 1-MCP Work?

Ethylene Receptor Blocking Mechanism

The main mode of action of 1-MCP is blocking ethylene perception.

Normally, ethylene binds with plant receptors and activates ripening-related physiological processes.

After 1-MCP treatment:

1-MCP molecules bind to ethylene receptors.

This reduces ethylene signaling and slows related processes, including:

• Fruit softening;
• Respiration changes;
• Color development;
• Senescence progression.

The effectiveness of 1-MCP depends on:

• Crop species;
• Variety;
• Harvest maturity;
• Storage conditions;
• Treatment timing.

1-MCP as an Ethylene Action Inhibitor

The relationship between ethylene and 1-MCP is the key to understanding its application.

Ethylene	1-MCP
Natural plant hormone	Synthetic plant growth regulator
Activates ripening signals	Blocks ethylene response
Accelerates physiological aging	Helps delay ethylene-related changes
Promotes softening in many fruits	Helps maintain firmness in suitable crops

Because 1-MCP regulates ethylene response, it is mainly positioned for postharvest management rather than field crop growth regulation.

1-MCP Formulations and Product Options

POMAIS supplies 1-MCP products in different formulation forms according to market and application requirements.

1-MCP Powder Formulation

Powder formulations are widely used for controlled-release applications.

Important formulation characteristics include:

• Active ingredient consistency;
• Release performance;
• Storage stability;
• Packaging protection.

Powder formulation selection depends on:

• Treatment system;
• Application method;
• Customer market requirements.

1-MCP Tablet Formulation

Tablet formulations provide standardized unit-based handling.

Potential advantages include:

• Convenient dosage management;
• Consistent product handling;
• Easy transportation and storage.

Tablet specifications depend on:

• Market requirements;
• Application equipment;
• Registration standards.

Controlled-Release 1-MCP Systems

Some applications require controlled release characteristics to achieve suitable treatment conditions.

The formulation design should consider:

• Release speed;
• Treatment environment;
• Storage system;
• Crop sensitivity.

1-MCP Uses and Applications

1-MCP is mainly used in postharvest management programs for ethylene-sensitive products.

The application effect depends on:

• Crop type;
• Variety;
• Storage environment;
• Treatment timing;
• Local approval.

Apple Storage Applications

Apple is one of the most common application areas for 1-MCP.

In apple storage programs, 1-MCP may help manage:

• Fruit firmness;
• Ripening speed;
• Storage quality;
• Postharvest physiological changes.

Performance depends on:

• Apple variety;
• Harvest maturity;
• Storage temperature;
• Storage duration.

Pear Storage Applications

Pear ripening is closely associated with ethylene response.

Where registered, 1-MCP may be used in pear storage programs to help manage:

• Softening;
• Ripening progression;
• Storage performance.

Other Ethylene-Sensitive Fruits

Depending on registration and market approval, 1-MCP may also be applied to other ethylene-sensitive crops.

Examples may include:

• Kiwi;
• Mango;
• Avocado;
• Other climacteric fruits.

Specific crop use should always follow approved local requirements.

Cut Flower and Ornamental Applications

Some ornamental products are sensitive to ethylene.

Where approved, 1-MCP may be included in postharvest programs to help reduce ethylene-related quality changes.

Application suitability depends on:

• Flower species;
• Treatment conditions;
• Market requirements.

How to Select a 1-MCP Product?

Selecting a suitable 1-MCP product requires considering several factors.

Formulation Type

Different formulations provide different handling and release characteristics.

Customers should consider:

• Powder or tablet preference;
• Application system;
• Storage environment.

Product Concentration

The required concentration depends on:

• Crop;
• Treatment method;
• Local approval;
• Customer application system.

Storage Conditions

Important factors include:

• Temperature;
• Humidity;
• Storage duration;
• Controlled atmosphere conditions.

Quality Control for 1-MCP Formulations

For 1-MCP products, formulation quality directly affects application consistency.

Quality Parameter	Importance
Active Ingredient Content	Confirms product specification
Purity	Supports product reliability
Release Performance	Influences treatment consistency
Particle Characteristics	Supports formulation quality
Moisture Control	Maintains product stability
Packaging Integrity	Protects active ingredient
Storage Stability	Supports commercial shelf life

POMAIS applies quality-control procedures to ensure batch consistency and product reliability.

Packaging and Storage

Because 1-MCP products require controlled stability, suitable packaging is important.

Commercial packaging should support:

• Moisture protection;
• Product stability;
• Transportation requirements;
• Storage management.

Packaging options depend on:

• Formulation type;
• Market requirements;
• Order quantity;
• Transportation conditions.

Regulatory and Market Considerations

1-Methylcyclopropene registration requirements vary between countries.

Before commercialization, customers should confirm:

• Approved crops;
• Postharvest treatment regulations;
• Label requirements;
• Import requirements;
• Local registration status.

A product approved for one market may not automatically be accepted in another market.

POMAIS supports customers with available technical documents and product information required for market evaluation.

Supply Support for 1-Methylcyclopropene (1-MCP)

POMAIS supplies 1-MCP plant growth regulator products for approved agricultural and postharvest applications.

Available support may include:

• COA;
• SDS;
• TDS;
• Product specification;
• Packaging information;
• Technical documents;
• Export documentation.

Customized supply solutions can be developed according to:

• Destination market;
• Required formulation;
• Packaging requirements;
• Registration needs;
• Order quantity.

Frequently Asked Questions

What is 1-Methylcyclopropene (1-MCP)?

1-Methylcyclopropene (1-MCP) is a plant growth regulator used mainly for postharvest quality management through ethylene action inhibition.

What is 1-MCP used for?

1-MCP is mainly used for fruit storage and postharvest programs to help regulate ripening and maintain quality.

How does 1-MCP work?

1-MCP blocks ethylene receptors and reduces ethylene-related physiological responses.

Is 1-MCP an ethylene inhibitor?

Yes. 1-MCP is commonly classified as an ethylene action inhibitor.

Is 1-MCP a fertilizer?

No. 1-MCP is a plant growth regulator and is not used as a fertilizer.

What crops use 1-MCP?

Applications vary by country and registration. Common uses include apples, pears and other ethylene-sensitive products.

What formulations of 1-MCP are available?

1-MCP may be supplied in powder, tablet and other controlled-release formulations depending on market requirements.

What is the CAS number of 1-MCP?

The CAS number of 1-Methylcyclopropene is 3100-04-7.

Does 1-MCP increase crop yield?

No. 1-MCP is mainly used for postharvest quality management rather than yield improvement.

Does 1-MCP work on all fruits?

No. Crop response depends on species, variety, maturity stage and storage conditions.

How should 1-MCP be stored?

Storage requirements depend on the formulation and product specification.

What documents can POMAIS provide?

POMAIS can provide available COA, SDS, TDS, product specifications and technical documents.

Request 1-MCP Product

For a 1-Methylcyclopropene project, please provide:

• Destination country;
• Target crop;
• Required formulation;
• Required concentration;
• Packaging requirements;
• Registration requirements;
• Technical document requirements.

POMAIS will review product specifications, market requirements and documentation needs before confirming supply options.

1-Methylcyclopropene (1-MCP) is an ethylene action inhibitor plant growth regulator designed for postharvest quality management, supporting fruit storage and ripening-control programs in approved applications.