CAS No. 75-09-2 | Formula: CH₂Cl₂

Dichloromethane Supplier

Our high-quality dichloromethane is manufactured in strict accordance with international standards (ASTM/ISO), ensuring a purity of 99.9% or higher. With over 15 years of experience in chemical production and international trade, we focus on serving high-volume B2B customers worldwide, providing a reliable supply chain, highly competitive prices, and comprehensive technical support.

GNEE BIO

Methylene Chloride Manufacture & Supplier

Dichloromethane (DCM or MC), with the chemical formula CH2Cl2 and CAS number 75-09-2, is a colorless, volatile, transparent liquid with a pungent odor similar to ether.

As an indispensable and excellent solvent in the global industry, dichloromethane is widely used in polyurethane foaming, metal cleaning, and paint stripping due to its high solubility, low boiling point, non-flammability (at room temperature), and excellent recovery rate.

Field	Value
Chemical Name	Dichloromethane
Synonyms	Methylene Chloride; DCM
CAS Number	27639
EC Number	200-838-9
UN Number	1593
HS Code	2903.12
Molecular Formula	CH2Cl2

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Overview Of High Purity Dichloromethane

Dichloromethane (DCM), also known as methylene chloride, has the chemical formula CH₂Cl₂ and CAS number 75-09-2. It is a colorless, volatile chlorinated solvent with a slightly sweet odor. Due to its excellent solubility, low boiling point, high volatility, and chemical stability, it is widely considered one of the most commonly used solvents in modern organic chemistry and industrial manufacturing.

As a professional dichloromethane producer and global supplier, we are committed to providing stable, well-supplied, and export-compliant solutions to industrial and commercial B2B customers worldwide. Ourhigh-purity, low-moisture dichloromethane plays a vital role in industries such as chemical processing, coatings, adhesives, and extraction.

Our dichloromethane products are available in a variety of grades, including industrial,and analytical grades, to meet the needs of different customers.

For example, our industrial-grade products have a purity of over 99.5% and are suitable for large-scale production; our industry-grade products meet USP and EP standards, ensuring no contamination. Product packaging options include25kg and 200kg drums or ISO cans, facilitating large-volume transportation and storage.

Product Identification

Field	Value
Chemical Name	Dichloromethane
Synonyms	Methylene Chloride; DCM
CAS Number	27639
EC Number	200-838-9
UN Number	1593
HS Code	2903.12
Molecular Formula	CH2Cl2
Molecular Weight (g/mol)	84.93
Structural Formula	H2CCl2

Typical Industrial Specification

Parameter	Specification / Typical	Notes / Conditions
Appearance	Colorless, Volatile Liquid	Visual
Odor	Sweet, Chloroform-Like	Sensory
Purity (GC, Area %)	≥ 99.8–99.99%	Grade-Dependent
Water (Karl Fischer)	≤ 50–500 ppm	Grade-Dependent
Acidity (As HCl)	≤ 10–30 mg/kg	Grade-Dependent
Nonvolatile Residue	≤ 10–50 mg/100 g	Evaporation Residue
Color (APHA/Hazen)	≤ 10	ASTM D1209
Stabilizer	None Or Trace (e.g., Amylene/Ethanol)	By Grade
Free/Active Chlorine	Not Detected / Within Spec	Method Dependent
Identification	Pass	IR/GC

Basic Physical Properties (20–25°C unless noted)

Physical Properties

Property	Value
Molecular Weight	84.93 g/mol
Physical State	Liquid
Color	Colorless
Odor Threshold	~250 ppm (vapor)
Density @ 20°C	1.325–1.330 g/mL
Density @ 25°C	~1.318–1.322 g/mL
Relative Vapor Density	~2.9 (Air = 1)
Boiling Point	39.6–40.0°C
Melting/Freezing Point	−97 to −96.7°C
Flash Point	None
Autoignition Temperature	~556°C
Flammability In Air	Nonflammable; Special Conditions May Burn
Vapor Pressure @ 20°C	~47–58 kPa (350–435 mmHg)
Vapor Pressure @ 25°C	~58–63 kPa (440–470 mmHg)
Viscosity @ 20°C	~0.43 mPa·s
Surface Tension @ 20°C	~27 mN/m
Refractive Index nD20	~1.424–1.425
Dielectric Constant @ 20°C	~9.1
Heat Of Vaporization (25°C)	~28.8–29.0 kJ/mol
Specific Heat (Liquid, 25°C)	~1.28–1.30 kJ/kg·K
Thermal Conductivity (25°C)	~0.104 W/m·K
Solubility In Water @ 20°C	~13 g/L (~1.3% w/w)
Water In DCM @ 20°C	~0.2–0.3% w/w
Partition Coefficient (log Kow)	~1.3–1.4
Henry’s Law Constant (25°C)	~2.0–2.4×10^-3 atm·m^3/mol
Explosive Limits (V/V)	LFL ~13%, UFL ~22% (Special Conditions)

Packaging Options

Package type	Nominal size	Materials	Closure/Features	Typical use case
HDPE drum	200–220 L	UV-stabilized HDPE	Tamper-evident bung; vented cap	Medium-volume users
Steel drum (lined)	200 L	Internally coated steel	Corrosion-resistant lining	Hot climates/long storage
IBC tote	1,000 L	HDPE bottle in steel cage	Vented UN cap; bottom valve	High throughput; reduced handling
ISO tank	20–26 kl	Stainless steel, passivated	Pressure/vacuum relief; bottom outlet	Bulk/continuous users
Tank truck	15–35 kl	Stainless steel	Regional deliveries	Large local deliveries
Small packs	25–30 kg	HDPE jerricans	Sealed caps	Lab/pilot or restricted sites

Storage & Handling

Item	Recommendation	Notes
Storage Temperature	Cool, Well-Ventilated	Away From Heat
Container Types	UN Drums, IBC, ISO Tank	Prefer N2 Blanket
Shelf Life	Typically 12–24 Months	Verify COA/Retest
Segregation	Separate From Bases/Oxidizers	EHS Practice
Venting/Blanket	Nitrogen Blanketing Recommended	Minimizes Moisture

Quality & Analytical Methods

Item	Method	Notes
Assay (Purity)	GC (Area %)	Per COA
Water	Karl Fischer (Volumetric/Coulometric)	ppm Level
Acidity (As HCl)	Titration	mg/kg
Residue On Evaporation	Gravimetric	mg/100 g
Color	APHA/Hazen	ASTM D1209
Stabilizer Content	GC/MS	If Present
Typical Trace Impurities	Chloroform, Chloromethane, MeOH/EtOH, Water	Grade-Dependent

Regulatory & Classification

Item	Value	Notes
GHS Classification	Acute Tox. 4 (Inh.), Skin Irrit. 2, Eye Irrit. 2, Carc. 2	Jurisdiction May Vary
Signal Word	Warning	GHS
Pictograms	GHS07, GHS08	Health Hazard
Hazard Statements	H332, H315, H319, H351	SDS
UN Number	1593	Transport
Transport Class	6.1 (Toxic), PG III	IMDG/IATA/ADR
REACH	Registered Substance	Check Supplier Registration

Compatibility & Materials

Material/Group	Compatibility	Notes
Stainless Steel 304/316	Compatible	Preferred
Carbon Steel	Generally Compatible	Short/Normal Contact
Active Alkali Metals	Incompatible	Na, K
Strong Bases/Oxidizers	Incompatible	Reaction Risk
PTFE/FEP/PVDF	Compatible	Fluoropolymers
PVC/EPDM/NBR	Variable	Check Vendor Charts
Polycarbonate/Acrylic	Not Recommended	Crazing/Stress Cracking

Advantages And Properties Of Methylene Chloride

Our company offers dichloromethane not just as a chemical, but as a complete solution that combines superior quality, reliable supply, in-depth technical support, and sustainable value. For B2B customers, choosing us means choosing a partnership that reduces supply chain risks, improves production efficiency, ensures consistent product quality, and provides ongoing technical support.

High Solubility and Selectivity

“Universal Solvent” Characteristics: Exhibits extremely strong dissolving power for polymers such as resins, oils, rubber, and cellulose acetate, while exhibiting low corrosivity to many metals, making it an ideal cleaning and stripping agent.

Selectivity Advantage: Compared to other chlorinated solvents, it offers superior selectivity for specific substances, enabling higher efficiency in extraction and purification processes.

Low Boiling Point and High Volatility

Boiling point is only about 39.6°C: This means it is highly volatile at room temperature, significantly shortening drying and removal time in the production process, improving production efficiency, and reducing energy consumption.

Non-flammable (but vapors require proper control)

Safety Advantages: Compared to common flammable solvents such as benzene, acetone, and ethanol, dichloromethane has no flash point. With proper ventilation and concentration control, its storage and use pose a lower fire risk.

High Density and Low Water Solubility

Density approximately 1.33 g/cm³: Heavier than water, facilitating phase separation in extraction processes.

Low Water Solubility (13 g/L, 20°C): Easily separates with water, facilitating recovery and purification, reducing wastewater treatment burden and product loss.

Chemical Stability

Stable under ambient temperature and light conditions, it is not easily decomposed, ensuring consistent quality during storage and transportation.

Graded High Purity: We offer a full range of products from industrial grade (≥99.5%) to pharmaceutical/electronic grade (≥99.9%), meeting the most stringent impurity control requirements of various industries (such as low moisture, low acidity, and low evaporation residue).

Batch Stability: Advanced DCS control systems and online monitoring ensure high consistency in key indicators (such as purity, moisture, and color) for each batch, providing a stable foundation for customers’ production processes.

Certifications: Products comply with international standards such as ISO and REACH; pharmaceutical-grade products comply with major pharmacopoeia standards and are equipped with complete compliance documentation (COA, MSDS, etc.).

Direct Production, Competitive Pricing: As a direct manufacturer, eliminating intermediaries, we can offer highly competitive prices to bulk purchasing customers.

Scalability and Stable Supply: With a monthly production capacity of 40,000 tons, we can handle long-term, large-volume orders and mitigate supply risks from market fluctuations, making us a reliable supplier for our clients.

Solutions: Beyond products, we offer value-added services such as formulation suggestions and process optimization guidance to address pain points in specific applications like paint stripping, pharmaceutical synthesis, foaming, and cleaning.

Regional Support: Based on local import policies, climate characteristics (e.g., high temperature and humidity), and industrial needs, we provide localized adaptation suggestions (e.g., slow-release formulations) and import compliance assistance.

Safety and Environmental Collaboration

We provide detailed safety operation guidelines, engineering control suggestions, and solvent recovery technology consultation to help customers achieve safe, environmentally friendly, and sustainable production, fulfilling our shared social responsibility.

Global Warehousing and Logistics Optimization: We enable rapid response delivery, significantly reducing customer wait times and lowering their inventory costs. We offer diverse packaging options (ISO TANK, IBC, drums) and flexible shipping solutions to optimize overall delivery costs.

Flexible Business Terms: We offer tiered discounts for bulk purchases and flexible payment methods (LC, T/T, etc.) and credit support based on customer creditworthiness to alleviate their financial pressure.

One-stop sourcing: A full-process service from inquiry, quality inspection, logistics to customs clearance support, simplifying the complexity of international procurement for clients, allowing them to focus more on their core business.

Long-term partnerships: Committed to building strategic, long-term partnerships with clients through reliable products, stable supply, and professional services, growing together.

Applications Of Dichloromethane

Dichloromethane is a low-boiling-point, high-solubility, and high-density organic solvent widely used inindustrial degreasing and precision cleaning, paint/coating/adhesive stripping, extraction and purification of chemical and intermediates, dissolution of polymers and resins, equipment cleaning, and electronic and metal surface treatment.

Industrial Degreasing And Cleaning

Removes Oils, Greases, Waxes From Metal Parts And Tools.
Used In Vapor Degreasing And Cold-Cleaning Systems.

Paint, Coating, And Resin Stripping

Effective Paint/Coating Remover For Metals, Wood, And Masonry.
De-bonding Of Adhesives And Sealants; Cleaning Resin Equipment.

Extraction And Purification Solvent

Organic Extraction In Fine Chemicals, Natural Products, And Flavors/Fragrances.
Phase-Split Workups In Synthesis; Rapid Layer Separation Due To Density.

Agrochemical Processing

Intermediate Processing Solvent For API/Intermediate Crystallization, Washing, And Purification.
Cleaning Solvent For Equipment Between Batches.

Polymer And Plastics Industry

Foaming Agent/Blowing Agent In Some PU/PIR Systems (Legacy/Regional Uses).
Solvent For Cellulose Acetate, Some Acrylics; Fiber/Film Casting And Dope Prep.

Electronics And Precision Cleaning

Removal Of Flux Residues, Oils, And Particulates From Metal Components.
Pre-Treatment Before Plating Or Coating.

Metalworking And Surface Preparation

Surface Prep Prior To Electroplating, Anodizing, Or Coating.
Removal Of Cutting Fluids, Drawing Oils, And Polishing Compounds.

Adhesives, Inks, And Coatings Manufacture

Dissolves Resins And Polymers; Viscosity Control And Fast Drying.
Equipment Cleaning Between Color/Grade Changes.

Compliance Statement: We do not directly target C-end pharmaceutical end-use applications. B-end clients must ensure compliance with usage and registration pathways.

Why choose GNEE BIO?

Gnee BIO boasts over 26 senior technical personnel, 15 laboratory staff, and an operations and sales team of more than 80 people. Our factory employs advanced continuous production processes to ensure product quality stability and batch consistency.

Our production capacity can meet the needs of large customers exceeding 5,000 tons per month, guaranteeing a long-term stable supply unaffected by market fluctuations.

Factory Strength

Owned/jointly-owned factories, continuous production lines and automated DCS control
ISO ISO 9001/14001/45001 certified; some units managed according to GMP requirements.
Complete EHS system and hazardous chemical management, adhering to REACH (EU), K-REACH, and Taiwan TSCCA compliance pathways.
Expandable annual capacity; peak season production scheduling mechanism; green channel for urgent orders.

Quality Control and Traceability

Three-level quality control from raw materials to process to finished products; online GC and KF automatic moisture monitoring. Each batch’s COA includes GC spectrum/metal ion/color/UV, etc. Sample and retention system; batch traceability to key process parameters.

Global Logistics and Localized Services

Partnering with top shipping companies/freight forwarders/customs brokers, offering multiple trade terms including FOB/CIF/CFR/DDU/DDP. Experienced in South America (e.g., Brazil, Chile), the Middle East (UAE), Africa (South Africa, Egypt), and Southeast Asia (Vietnam, Thailand, Indonesia, Malaysia, Philippines). Multilingual services available (English/Spanish/Portuguese/Arabic/French/Indonesian/Vietnamese/Thai).

Direct Manufacturer

Product Quality Assurance

Supply Chain and Delivery

R&D Capabilities

Quality and Compliance

Technical Services

Who We Are

We are a professional team specializing in fine chemicals, basic chemicals, specialty chemicals, and functional materials. We serve clients in the pharmaceutical intermediates, electronic chemicals, coatings and adhesives, new energy, water treatment, and agrochemical industries, providing integrated solutions from formulation development to large-scale production.

Team Composition

We have approximately 280 employees, including 26 in R&D, 125 in production and EHS, 14 in quality, 45 in supply chain and operations, and 35 in business and customer success. Our core leadership team has 23 years of experience in the chemical industry and possesses extensive knowledge of chemical products. Feel free to contact us for consultation.

Mission and Vision

To bring chemical products to market more safely, efficiently, and environmentally friendly, becoming a trusted partner in our respective niche markets.

Our Services

Our production capacity can meet the needs of large customers exceeding 5,000 tons per month, guaranteeing a long-term stable supply unaffected by market fluctuations.

Pre-sales and Technical Support

Product Selection Recommendations: Providing product solutions based on application scenarios.

Technical Documentation Provision: TDS (Technical Data Sheet), SDS (Safety Data Sheet), COA sample, process guidelines, etc.

Sample Support: Providing free samples, standard tests, and application experiment reports.

Technical Exchange: Joint process review window, PHA/HAZID recommendations.

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Customization and R&D Services

Custom Synthesis/Formulation Development (CRO/CMO/CDMO): Customizing purity, impurity profiles, particle size, color, stability, etc., according to specifications.

Process Optimization and Scale-up: Designing pilot-scale to mass production routes, yield and cost optimization, green alternatives and solvent recycling solutions.

Joint Development and Application (JDA): Jointly defining target specifications, validation methods, and milestones with clients; IP/confidentiality clauses can be customized.

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Quality and Compliance Support

Quality System Integration: Sharing and auditing cooperation on ISO 9001/14001/45001 documents.

Incoming and Outgoing Inspection: Batch-by-batch COA, sample retention management, and accompanying testing methods (GC/HPLC/ICP, etc.).

Change Management (MOC): Advance notification and revalidation support for changes to raw materials, processes, equipment, production lines, locations, etc.

Certification: SGS/CE/REACH, RoHS, hazardous chemical classification and transportation compliance.

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Production and Supply Chain Services

Capacity and Delivery Commitment: Flexible production scheduling, VMI/safety stock, JIT supply, long-term framework agreements.

Packaging and Label Customization: IBC/drum/small packaging, liner/valve material selection, multilingual labels and QR code traceability.

Logistics and Temperature Control: Ambient temperature/cold chain/insulated transportation, hazardous materials classification transportation solutions and customs clearance support.

Export and Documentation: Commodity inspection, certificate of origin, MSDS, TDS, COA, SOP, test reports, packing lists and bills of lading services.

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After-sales Service and Continuous Improvement

Customer Complaint Handling and Technical Support SLA: Timely response, closed-loop technical support.

Regular Business Review (QBR): Quality indicators (PPM, OTD), cost optimization, carbon reduction and ESG collaborative projects.

Third-Party Inspection Support: Supports third-party inspections such as SGS/BV, with full traceability of the inspection process.

Ask about custom services

Gnee BIO

FAQ

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What is the Minimum Order Quantity (MOQ)?

Standard MOQ is 1 ton; Electronic grade/special customized grade MOQ may be 2–5 tons; Full container load (FCL) or ISO tanks enjoy better pricing.

Can you provide samples?

We can provide 1–5 kg industrial samples for experimental verification, freight collect or credited to the first order. Electronic grade samples are managed according to the application process.

How long is the delivery time?

In-stock items ship within 3–7 days; customized specifications are scheduled for production within 7–15 days; sea freight delivery time depends on the destination port and route (Asia 7–15 days, Middle East 15–25 days, Africa/South America 25–45 days for reference).

How to ensure no crystallization in winter?

We provide insulated packaging, heating belts, or winter temperature control solutions, and provide temperature records during transportation (optional).

How to control metal ions and moisture?

High-purity raw materials, inert material contact, online drying and clean filling are used; electronic-grade processes are completed in a clean area and packaged in special containers.