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Cyclopropane purity 99% China supplier hly57

COA

Unit Price:

$1/MT FOB

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CAS No.:

75-19-4

Grade:

Industrial Grade

Content:

99%

Port:

qingdao

Brand:

HLY

Packaging:

50 L/seamless steel cylinders

Price valid (until):

2027-02-28

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Suqian City Hengliyuan Import and Export Trade Co., LTD

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Acrylonitrile,Sodium biselenite methylamine solution,Methylamine [anhydrous],Zinc dust,Hydrogen peroxide solution [content >8%],Triisopropyl borate

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Product Description
Seller Information

Description

Company Profile ----------
Suqian City Hengliyuan Import and Export Trade Co., LTD is a trading company. The company has introduced advanced scientific and technological achievements from home and abroad, and has superior products from well-known manufacturers at home and abroad. The basic functions are:
1. Domestic trade of various chemical raw materials;
2. Providing price information services and chemical raw material procurement for industrial enterprises;
3. Cooperating with Chinese state-owned enterprise factories, the price and quality are very advantageous.
At present, the company is relying on the combination of industry and trade and global procurement to steadily improve the company's value-added ability and compound competitiveness. We have always been committed to producing high-quality and low-cost goods, so we have been sincerely recognized by many customers. Our goal is to produce the best products and satisfy every customer with professional services and attitudes. We look forward to cooperating with you and establishing a win-win relationship with you. Please rest assured that we will definitely satisfy you.

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----------packaging and delivery ----------

----------Our Advantages---------

High quality with competitive price
1) Standard:BP/USP/EP/Enterprise standard
2) All Purity≥99%
3) We can provide high quality products with factory price
2. Fast delivery
1) Fast shipment.Various transportation methods for your choice.
2) We have our own agent/remailer/distributor who can help us ship our products very fast , and we have stock in the ir for transferring.
3. Good communication and credit
1) Fast response to customer within 5 hours
2) Good business credit in Europe, US, Japan, Korea, Af r ica and so on.

CyclopropaneCAS 75-19-4 Full Export Specification

1. Basic Chemical Identification

IUPAC Name: Cyclopropan
Aliases: Trimethylene,
CAS No.: 75-19-4
EINECS: 200-847-8
MDL No.: MFCD00001268
Molecular Formula: $\boldsymbol{C_3H_6}$
Molecular Weight: 42.08
SMILES: C1CC1
HS Code: 2902199090
UN Number: UN 1027
IMDG Hazard Class: Class 2.1 Extremely Flammable Gas
Signal Word: Danger
RTECS: GZ0690000

2. Physical & Chemical Properties

Appearance: Colorless gas at normal temperature & pressure, faint petroleum ether odor
Melting Point: −128 ℃
Boiling Point: −33 ℃ (760 mmHg)
Liquid Density (−79 ℃): 0.72 g/mL
Vapor Density (air=1): 1.88 (heavier than air, accumulates low-lying ground)
Flash Point: No flash point (gas)
Autoignition Temperature: 500 ℃
Explosion Range in Air: 2.4 ~ 10.4 vol% (ultra-wide flammable range, high explosion risk)
Solubility: Slightly soluble in water; freely soluble in ethanol, ether, acetone, hydrocarbons, halogenated solvents
Stability
- Stable under dry sealed steel cylinder storage at low temperature; prone to ring-opening polymerization under high temperature, high pressure or metal catalyst
- Violent reaction risk with strong oxidants, chlorine, fluorine, bromine
- Static electricity, open flame, hot surface easily trigger explosion
Core Extreme Hazards
- H220: Extremely flammable gas; gas leakage forms explosive mixture with air even at low concentration
- H280: Contains gas under pressure; may explode if heated
- H336: High-concentration gas induces anesthesia, dizziness, drowsiness, respiratory suppression (once used as medical inhalation anesthetic)
- No significant aquatic toxicity, but combustion produces CO toxic fumes

3. Standard COA Technical Specifications

Industrial Synthetic Grade ≥99.0% (Main Export Grade, Steel Cylinder Packed)

Test Item	Standard Specification
Cyclopropane Purity (GC)	≥99.0 vol%
Propylene / Propane / Methane impurity total	≤0.80 vol%
Moisture Content	≤50 ppm
Oxygen + Nitrogen residual	≤0.10 vol%
Sulfur-containing impurities	≤3 ppm
Heavy Metal (Pb)	≤5 ppm

High-Purity Electronic/Laboratory Grade ≥99.99%

Ultra-low hydrocarbon heterologous impurities, ultra-dry; for fine organic ring-opening synthesis, semiconductor specialty gas, lab calibration standard gas

4. Main Industrial Applications

1. Fine Organic Synthetic Raw Material (Largest Consumption)

Three-membered ring building block for pharmaceutical, agrochemical intermediates; undergoes ring-opening addition, polymerization, halogenation to synthesize cyclopropyl derivatives, antiviral & antibacterial drug scaffolds

2. Medical Inhalation Anesthetic (Traditional Use)

Low-toxicity general anesthetic gas for surgical anesthesia (now gradually replaced by safer fluorinated anesthetics)

3. Specialty Calibration Standard Gas

Certified reference gas for petrochemical online GC detector calibration, hydrocarbon flammability test instrument calibration

4. Polymer Modification Monomer

Co-monomer for polyolefin modification; introduces cyclopropyl rigid structure to improve polymer heat resistance and mechanical toughness

5. Laboratory Organic Reaction Reagent

Classic small ring alkane substrate for ring strain research, catalytic ring-opening reaction, carbocation rearrangement mechanism study

5. Export Packaging & Storage Transportation

Standard Export Packaging

Industrial bulk: 40L / 80L seamless carbon steel gas cylinder, cylinder valve with safety cap, nitrogen pre-purged before filling, net filling weight 18kg / 36kg per cylinder
High-purity lab grade: 8L small steel cylinder, vacuum nitrogen-sealed

All cylinders fixed with steel strapping on wooden pallets, fully covered waterproof & flame-retardant composite film; transit temperature strictly controlled ≤25 ℃, avoid sunlight, high temperature, collision and static friction

Mandatory Warehouse Storage Rules

Independent dedicated Class 2.1 flammable gas warehouse, full explosion-proof ventilation, indoor temperature <30 ℃, no underground low-lying storage area
All gas cylinders stand upright, fixed with chain lock, valve safety caps tightly covered; strictly separated from oxidant gas cylinders (O₂, Cl₂), liquid oxidants, open flame heat sources
Equipped with continuous flammable gas concentration alarm, CO₂ & dry powder fire suppression system, static grounding facilities

Ocean Transport Rules

UN1027 Class 2.1 Extremely Flammable Gas dangerous goods

Only dedicated flammable gas tank containers / cylinder rack containers allowed; mixed loading with oxidants, corrosive liquids, edible goods completely forbidden
Cylinders must be pre-inspected for pressure tightness before loading; full set of high-risk flammable gas export documents mandatory for global customs clearance

6. GHS Full Hazard Statements & Mandatory PPE

Hazard Statements

H220: Extremely flammable gas
H280: Contains gas under pressure; may explode if heated
H336: May cause drowsiness or dizziness

Mandatory PPE

Half-face respirator with aliphatic hydrocarbon gas filter cartridge; full-face positive-pressure SCBA for gas leakage emergency handling
Double protection: fully sealed chemical safety goggles + full flame-retardant anti-impact face shield
Anti-static nitrile impermeable gloves
Flame-retardant anti-static full-body protective coveralls + anti-static rubber safety boots
Local negative-pressure explosion-proof ventilation at cylinder filling & sampling station

Spill & First Aid Emergency Treatment

Gas leakage disposal: Immediately evacuate all personnel, cut all ignition sources & static sparks; open full explosion-proof ventilation; close cylinder main valve if safe; dilute leaked gas with large-volume forced air; prohibit all electric switch operation, no spark tools; residual gas naturally diffuse, do not spray water mist blindly
Skin contact: Liquid cyclopropane causes frostbite; flush frostbite area with lukewarm running water (37–40 ℃), do not rub frozen skin, send to hospital
Eye contact: Liquid splashing frostbite; continuously flush eyes with clean warm water minimum 15 minutes, emergency ophthalmic treatment
Inhalation: Move victim to fully fresh air instantly; if breathing stops, perform artificial respiration with oxygen supply; severe anesthesia symptoms require immediate hospital admission
Ingestion: Not applicable (gas at normal temperature)

7. Foreign Trade Selling Advantages

Two grades available: industrial synthetic bulk cylinder grade & high-purity electronic/lab standard grade, ultra-low heterologous hydrocarbon impurities to avoid side reactions in downstream ring-opening synthesis
Standard seamless steel cylinder pressure packaging, vacuum nitrogen pre-purged to prevent impurity contamination during long cross-ocean sea transit
Complete Class 2.1 extremely flammable gas dangerous goods export document set (COA, English SDS, UN gas cylinder packaging qualification certificate, IMDG maritime declaration, certificate of origin, impurity inspection report)
Flexible supply: small 8L lab cylinders, 40L/80L industrial bulk cylinders, customized ton tank gas supply
Unique strained three-membered ring structure, exclusive raw material for cyclopropyl fine chemical synthesis, long-term supplier for global pharmaceutical intermediate and petrochemical calibration gas manufacturers

8. Full Set Export Supporting Documents

Batch Certificate of Analysis (COA)
English SDS Safety Data Sheet (Class 2.1 ultra-flammable compressed gas special version)
UN Dangerous Goods Gas Cylinder Packaging Qualification Certificate (UN1027)
IMDG Maritime Dangerous Goods Declaration File (Class 2.1)
Certificate of Origin
Hydrocarbon impurity & moisture compliance test report

Ready-to-Send English Foreign Trade Development Email

Subject: High Purity Cyclopropane Trimethylene CAS 75-19-4 Strained Ring Pharmaceutical Synthetic Gas & Calibration Standard Gas Supply

Dear Sir/Madam,

This is Blake from Hengliyuan Import & Export Co., Ltd. We supply high-quality Cyclopropane (Trimethylene, CAS 75-19-4), ultra-flammable three-membered ring alkane gas, widely used as key building block for cyclopropyl pharmaceutical/agrochemical intermediate synthesis and certified calibration standard gas for petrochemical GC analyzers.

Two grades for different industrial demands:

Industrial synthetic grade ≥99.0%: Controlled low propane/propylene impurities, stable ring-opening reactivity for antiviral drug intermediate manufacturing, packed in 40L/80L seamless steel cylinders with full safety valve protection.
High purity lab grade ≥99.99%: Super dry ultra-low trace contaminants, dedicated for laboratory organic strain ring reaction research and high-precision flammability instrument calibration.

Packed in vacuum nitrogen pre-purged seamless carbon steel cylinders with safety caps, fixed on flame-retardant wooden pallets to avoid collision leakage during long sea transport. We provide full professional pressure flammable gas safety transport solution for Class 2.1 UN1027 dangerous goods.

We offer complete export documents including COA, English SDS, UN cylinder packaging certificate, IMDG maritime declaration and certificate of origin for smooth worldwide customs clearance. Flexible MOQ for small lab cylinders and bulk industrial cylinder orders.

If you need cyclopropane gas for fine pharmaceutical synthesis or petrochemical calibration gas formulation, kindly inform your required purity and cylinder specification, we will provide competitive factory quotation immediately.

Best regards,

Blake Wang

Hengliyuan Import & Export Co., Ltd.

Certificates

Basic Info

Product Name:

Cyclopropane

Other Name:

Cyclopropane;Trimethylene;Trimethylene (cyclic);RC 270;RC 0270;151821-32-8

CAS No.:

75-19-4

Molecular Formula:

C3H6

InChIKeys:

InChIKey=LVZWSLJZHVFIQJ-UHFFFAOYSA-N

Molecular Weight:

42.08

Exact Mass:

42.08

EC Number:

200-847-8

UNII:

99TB643425

UN Number:

1027

DSSTox ID:

DTXSID4058786

Color/Form:

COLORLESS GAS

HScode:

2902199090

Categories:

Hydrocarbons and Derivatives

Characteristics

PSA:

XLogP3:

1.72

Appearance:

Cyclopropane is a colorless gas with a petroleum-like odor. It is shipped as a liquid at 4-6 atms. It is easily ignited. The vapors are heavier than air. Contact with the liquid may cause frostbite. It can asphyxiate by the displacement of air and has a narcotic effect in high concentration (formerly used as an anesthetic gas). Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket.

Density:

1.1358 g/cm³ @ Temp: 20 °C

Melting Point:

-127.4 °C

Boiling Point:

-32.8 °C @ Press: 760 Torr

Flash Point:

-100.5±11.7 °C

Refractive Index:

1.433

Water Solubility:

3.81X10+2 mg/l water at 35 deg C

Vapor Pressure:

5.41X10+3 mm Hg at 25 deg C/ calculated from experimentally derived coefficients/

Vapor Density:

1.45 (vs air)

Toxicity:

Inhalation-Mice LCL0 282 g/m3/2 hours

Flammability characteristics:

combustible

Explosive limit:

10.4%

Odor:

RESEMBLES THAT OF PETROLEUM ETHER

Taste:

PUNGENT

OH:

8.40e-14 cm3/molecule*sec

Experimental Properties:

LIQUEFIES AT 4-6 ATM|Heat of Fusion: 30.92 cal/g|Ratio of Specific Heats of Vapor (Gas): 1.1790|Heat of Vaporization: 5897.7 gcal/gmole|For more Other Experimental Properties (Complete) data for CYCLOPROPANE (8 total), please visit the HSDB record page.

Air and Water Reactions:

Highly flammable. Insoluble in water.

Reactive Group:

Hydrocarbons, Aliphatic Saturated

Reactivity Alerts:

Highly Flammable

Reactivity Profile:

CYCLOPROPANE is incompatible with strong oxidizing agents such as nitric acid. Boiling of the liquid and charring may occur followed by ignition of remaining material and other nearby combustibles. Adsorbed readily by concentrated sulfuric acid [Merck]. In other settings, mostly unreactive. Not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents. When heated sufficiently or when ignited in the presence of air, oxygen or strong oxidizing agents, burns exothermically to produce carbon dioxide and water. Mixtures with oxygen or air may explode [Merck]. Contact of the cold liquefied gas with water may result in vigorous or violent boiling and extremely rapid vaporization due to the large temperature differences involved. If the water is hot, a liquid "superheat" explosion may occur. Pressures may build to dangerous levels if the liquid contacts water in a closed container, [Handling Chemicals Safely, 1980. p. 250].

Autoignition Temperature:

932 °F (USCG, 1999)|928 °F (497 °C)

Heat of Combustion:

-21247 Btu/lb= -11804 cal/g= -493.88X10+5 J/kg

Flammable Limits:

2.4%-10.3%

Heat of Vaporization:

Molar enthalpy of vaporization: 20.05 kJ/mol at -32.81 °C; 16.93 kJ/mol at 25 °C

Critical Temperature & Pressure:

Critical Temp: 256.5 °F= 124.7 °C= 397.9 deg K; Critical Pressure: 798 psia= 54.2 atm= 5.50 MN/sq m|Critical Temperature: 125.1 °C; Critical Pressure: 5.57 MPa

See More Cyclopropane Properties 

Hazard Identification

Classification of the substance or mixture

Gases under pressure: Compressed gas

Flammable gases, Category 1A, Flammable gas

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H220 Extremely flammable gas
Prevention	P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
Response	P377 Leaking gas fire: Do not extinguish, unless leak can be stopped safely. P381 In case of leakage, eliminate all ignition sources.
Storage	P410+P403 Protect from sunlight. Store in a well-ventilated place. P403 Store in a well-ventilated place.
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More Cyclopropane Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Acrylonitrile,Sodium biselenite methylamine solution,Methylamine [anhydrous],Zinc dust,Hydrogen peroxide solution [content >8%],Triisopropyl borate

Location:
Shop No.15, 1st Floor, Building 12, Hengda Huafu, Sucheng District, Suqian City

Payment Terms:
TT against B/L draft before shipment,100% TT in advance

Average lead Time:
30

Total Annual Revenue:
Less than $1 million

Total Employees:
5-10

Year of Establishment:
2022
Company Overview

Suqian Hengliyuan Import and Export Corporation, Ltd. is a leading enterprise specializing in the international trade of chemical products. Established in Suqian, Jiangsu Province, China, our company has built a strong reputation for excellence and reliability in the chemical industry.

Our Mission

Our mission is to facilitate global trade by providing high-quality chemical products and exceptional service to our clients. We aim to be a bridge between manufacturers and end-users, ensuring the safe and efficient transfer of chemicals across borders.

Products and Services

We offer a comprehensive range of chemical products, including but not limited to:

Industrial Chemicals: Raw materials for various industries such as pharmaceuticals, agriculture, and manufacturing.

Specialty Chemicals: High-performance chemicals used in specific applications, including water treatment, coatings, and adhesives.

Bulk Chemicals: Large-volume chemicals for industrial processes and manufacturing needs.

Quality Assurance

At Suqian Hengliyuan Import and Export Corporation, Ltd., quality is our top priority. We adhere to stringent quality control measures and international standards to ensure that our products meet the highest levels of purity and performance. Our dedicated quality assurance team conducts rigorous inspections and testing to guarantee the integrity and safety of all our chemical products.

Global Network

Leveraging our extensive network of suppliers and partners, we are able to source and deliver a wide array of chemical products to clients worldwide. Our strategic partnerships and logistical expertise enable us to offer competitive pricing, timely delivery, and customized solutions to meet the diverse needs of our clients.

Commitment to Sustainability

We are committed to sustainable business practices and environmental stewardship. Our operations are designed to minimize environmental impact, and we continuously seek ways to improve our processes and reduce our carbon footprint. We work closely with our suppliers and customers to promote the responsible use and disposal of chemicals.

Customer Focus

Our clients are at the heart of everything we do. We pride ourselves on providing personalized service and building long-term relationships based on trust and mutual benefit. Our experienced team of professionals is dedicated to understanding our clients' needs and delivering solutions that exceed their expectations.
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