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638-29-9 Valeryl chloride china supplier hly57

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Unit Price:

$1/MT FOB

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CAS No.:

638-29-9

Grade:

industrial Grade

Content:

99%

Port:

qingdao

Packaging:

200kg UN-approved steel drum

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
Inquiry History

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.

Butyl Cyclopentyl Ether

CAS No.: 638-29-9

1. Basic Identification

Chemical Name: Butyl cyclopentyl ether

Synonyms: Cyclopentyl n-butyl ether, n-Butoxycyclopentane

EINECS No.: 211-334-8

MDL No.: MFCD00010648

Molecular Formula: $\boldsymbol{C_9H_{18}O}$

Molecular Weight: 142.24

SMILES: CCCC OC1CCCC1

UN Number: UN 1993

HS Code: 2909199090

Hazard Classification: Class 3 Flammable Liquid, Packing Group II

Chemical Category: Cyclic alkyl ether, high-boiling low-peroxide green reaction/extraction solvent, alternative to THF, CPME, diethyl ether

2. Physical & Chemical Properties

Appearance

Colorless transparent oily liquid with mild ethereal odor; far lower auto-oxidation & peroxide generation risk than tetrahydrofuran, diethyl ether and short-chain ethers.

Physical Constants

Parameter	Standard Value	Remarks
Melting Point	-92 ℃	Remains liquid under low-temperature reaction conditions
Boiling Point	154–156 ℃ (760 mmHg)	High boiling point, easy vacuum distillation recovery, low volatilization loss
Density (20 ℃)	0.848–0.851 g/mL	Lighter than water, floats on water layer
Refractive Index $n_{20/D}$	1.423–1.425	Core purity testing indicator
Closed Cup Flash Point	42 ℃	Flammable liquid, low fire hazard vs low-boiling ethers
Autoignition Temperature	258 ℃
Explosion Limit in Air (V/V)	0.9% ~ 8.7%	Flammable range exists in closed confined spaces
Vapor Pressure (20 ℃)	0.75 kPa	Low volatility, vapor barely accumulates in low ground areas
Water Solubility	Very slightly soluble in water	Clear liquid-liquid separation after extraction, minimal solvent loss into aqueous phase
Organic Miscibility	Fully miscible with alcohols, ketones, esters, aromatic/aliphatic hydrocarbons, ethers

Core Chemical Characteristics

Ultra-low peroxide formation

Cyclopentyl + n-butyl dual alkyl structure greatly slows air oxidation; safe for long-term storage without frequent distillation to remove peroxides.
Inert ether solvent compatible with strong bases

Stable to Grignard reagents, organolithium, alkali metal hydrides, low-temperature coupling reactions; no side reaction with strong nucleophiles.
Excellent separation performance

Low water solubility avoids solvent loss during liquid-liquid extraction; high boiling point allows complete recovery under mild vacuum without thermal decomposition.
Hydrolysis stability

Stable under neutral & weak acid environment; only hydrolyzes under hot concentrated strong acid to cyclopentanol and n-butanol.
Incompatible materials: Strong oxidants, hot concentrated mineral acids, liquid chlorine, organic peroxide initiators.

3. Export Industrial Quality Specifications

Premium Synthetic Grade ≥99.5% (Mainstream Export)

Test Item	Standard Spec	Test Method
Butyl cyclopentyl ether Assay	≥99.5 %	GC-FID Gas Chromatography
Cyclopentanol Impurity	≤0.10 %	GC
n-Butanol Residual	≤0.05 %	GC
Moisture Content	≤0.03 %	Karl Fischer Titration
Peroxide Value	≤3 ppm	Iodometric titration
Color (APHA)	≤10	Platinum-Cobalt Colorimetry
Distillate 153–157 ℃	≥95 vol%	Atmospheric distillation test
Appearance	Colorless clear liquid without turbidity or sediment	Visual Inspection

Anhydrous Ultra-Dry Grade ≥99.9%

Moisture <10 ppm, nitrogen-sealed packaging, specially used for anhydrous organometallic, chiral API and peptide synthesis.

4. Main Industrial Applications

4.1 Pharmaceutical Fine Chemical Synthesis (Core High-Value Field)

Safe replacement solvent for THF/CPME in Grignard, organolithium, asymmetric coupling, low-temperature condensation reactions; eliminates explosion risk from peroxide accumulation.
High-efficiency extraction solvent for chiral drug intermediates, bulk APIs and natural plant alkaloids; high boiling point reduces solvent residue in finished drugs.
Recrystallization medium for high-purity drug substances, produces uniform crystal grains with fast filtration and low mother liquor entrainment.
Reaction solvent for cyclopentyl-series intermediate production (cyclopentene, cyclopentanol, cyclopentyl halide).

4.2 Coating, Ink & Resin Industry

Slow-evaporating high-solubility diluent for high-end polyurethane, acrylic, amino baking coatings and gravure printing inks, excellent leveling and gloss performance.
Auxiliary solvent for electronic insulating varnish, effectively eliminates film pinholes and shrinkage defects.

4.3 Separation & Extraction Industry

Liquid-liquid extractant for organic pollutant recovery from industrial wastewater and rare metal ion separation.
Azeotropic dehydrating agent for alcohol/ester systems, substitute toxic benzene/toluene dehydrating agents.

4.4 Laboratory Green Universal Solvent

Low-risk alternative to short-chain ethers for organic synthesis labs; applicable for reduction, alkylation, aldol condensation and asymmetric catalytic reactions.

5. Toxicology, Health Hazards & First Aid

Toxicity Profile

Acute Oral LD50 (Rat) >2000 mg/kg (Category 4, harmful if swallowed)
Dermal hazard: Mild skin degreasing effect; long continuous contact causes dry skin and slight pruritus
Inhalation hazard: High-concentration mist vapor induces mild dizziness, drowsiness and slight respiratory tract irritation
Eye hazard: Slight stinging and conjunctival congestion after liquid splashing
Environmental hazard: Slightly harmful to aquatic life, readily biodegradable compared with traditional ether solvents

Exposure Symptoms

Inhalation of mist/vapor: Mild throat irritation, headache, fatigue and lethargy under high concentration
Skin contact: Dry tight skin and slight erythema after long-time exposure
Eye splash: Temporary stinging pain, mild blurred vision and conjunctival redness
Oral ingestion: Mild abdominal distension and nausea without severe corrosive damage

Complete First-Aid Procedures

Inhalation: Move victim to well-ventilated fresh air for rest and observation; supply oxygen if breathing difficulty occurs
Skin Contact: Immediately remove contaminated clothing, continuously rinse affected skin with plenty of running cold water for ≥15 minutes
Eye Contact: Force open eyelids, continuously irrigate eyes with clean cold water for more than 15 minutes
Oral Intake: DO NOT induce vomiting; drink large volume of clean water for dilution and seek medical care if discomfort persists

6. Storage, Handling & Incompatibility Rules

Mandatory Storage Conditions

Warehouse classification: Special Class 3 flammable liquid explosion-proof warehouse, isolated from oxidants, concentrated acids, food and feed raw materials
Temperature control: Ambient storage temperature ≤25 ℃, light-shaded storage to slow trace peroxide generation
Sealing requirement: Carbon steel drums sealed with PTFE gaskets; nitrogen blanketing recommended for long-term stock; warehouse equipped with flammable vapor leakage alarm
Static control: All transfer pipelines and pallets must be static grounded; only non-sparking copper tools allowed for loading/unloading
Shelf life: 12 months under original intact sealed packaging; peroxide testing required after long-term opening

Strictly Separated Incompatible Materials

Strong oxidants, concentrated sulfuric acid/hydrochloric acid, chlorine gas, organic peroxides, edible raw materials

Safe Operation Specifications

Operators wear nitrile solvent-resistant gloves, impact safety goggles and anti-static work clothes; activated carbon organic vapor respirator required in poorly ventilated closed workshops
No open flame, smoking or static sparks within 10-meter operation radius
Small leakage: Absorb with dry inert sand, collect waste into sealed hazardous waste metal barrels; prohibit direct discharge into sewers
Large leakage: Build sand retaining dikes to contain liquid, force ventilation to disperse flammable vapor, prevent infiltration into soil and water bodies

7. Export Packaging & Global Transportation Regulations

Standard Export Packaging Modes

Industrial bulk grade: 200L carbon steel sealed drum with PTFE anti-leak gaskets
Medium batch goods: 25L plastic-lined iron drum
Lab anhydrous reagent package: 1L / 5L brown light-proof plastic bottle with outer shockproof carton
Large-volume ocean shipment: 20ft stainless steel ISO tank container with static grounding device

UN Transport Compliance Rules

UN 1993, Class 3 Flammable Liquid, Packing Group II

Road transport: Vehicles equipped with exhaust flame arrestors, dual dry powder & CO₂ fire extinguishers, ventilated cargo compartment
Ocean shipment: Comply with IMDG flammable liquid dangerous goods standards; paste flammable hazard labels on each drum, stacking height ≤2 layers
Loading ban: Mixed loading with oxidants, strong acids, edible goods and metal powders in one container is strictly prohibited

Full Export Document Package

Batch Certificate of Analysis (COA)
GHS-compliant MSDS / SDS
Technical Data Sheet (TDS)
Marine Dangerous Goods Declaration
REACH Compliance Registration Report

8. GHS Global Hazard Label Statements

Signal Word: Warning

Hazard Statements:

H226 Flammable liquid and vapor

H315 Causes skin irritation

H319 Causes serious eye irritation

H336 May cause drowsiness or dizziness

H412 Harmful to aquatic life with long lasting effects

Precautionary Statements:

P210 Keep away from heat, sparks, open flames, hot surfaces – No smoking

P261 Avoid breathing vapor/mist

P280 Wear protective gloves and eye protection

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes

P403+P235 Store in a well-ventilated place. Keep cool and tightly sealed.

9. Fire Emergency Disposal Plan

Approved Fire Extinguishing Agents

Primary: Dry chemical powder, carbon dioxide (CO₂)
Auxiliary: Alcohol-resistant foam fire extinguishing agent

Forbidden Agents

Direct high-pressure water jet (liquid floats on water surface and spreads flammable vapor to expand fire hazard range)

Fire Site Operation Steps

Evacuate all personnel to upwind safe zone, isolate fire area and cut all ignition sources
Continuously cool surrounding butyl cyclopentyl ether drums with water mist to prevent thermal expansion rupture and vapor leakage
Collect all fire residual waste liquid and solid as hazardous waste for centralized incineration treatment; prohibit direct discharge into water bodies

10. Printable Export COA Template

CERTIFICATE OF ANALYSIS

Product Name: Butyl Cyclopentyl Ether

CAS No.: 638-29-9

Grade: Export Industrial Synthetic Grade

Batch No.: ____________

Net Weight: 200kg/drum

Manufacture Date: ____________

Test Item	Standard Spec	Test Result	Test Method
Butyl cyclopentyl ether Purity	≥99.5 %		GC Gas Chromatography
Cyclopentanol Impurity	≤0.10 %		GC
n-Butanol Residual	≤0.05 %		GC
Moisture Content	≤0.03 %		Karl Fischer Titration
Peroxide Value	≤3 ppm		Iodometric Titration
Color (APHA)	≤10		Platinum-Cobalt Colorimetry
Appearance	Colorless clear liquid without turbidity or sediment	Visual Inspection

Conclusion: This batch complies with export industrial standard of Butyl Cyclopentyl Ether.

Inspector Signature: ____________

Issuance Date: ____________

11. E-commerce Listing Copy (Alibaba / Echemi Direct Use)

Product Title

Butyl Cyclopentyl Ether CAS 638-29-9 99.5% High Boiling Low Peroxide Cyclic Ether Solvent Substitute for THF CPME Grignard Reaction API Extraction Recrystallization Medium

Short Description

Butyl cyclopentyl ether (C₉H₁₈O, CAS 638-29-9) ≥99.5% high-boiling low-peroxide cyclic ether solvent, safer alternative to THF, diethyl ether and CPME. Widely used in pharmaceutical Grignard/organolithium synthesis, API liquid-liquid extraction and drug recrystallization. Complete UN1993 Class 3 flammable dangerous goods export documents COA, MSDS and TDS available for global bulk drum shipment.

Full Description

Butyl cyclopentyl ether (CAS 638-29-9) is a high-boiling eco-friendly cyclic ether fine chemical, supplied as colorless transparent liquid with GC purity ≥99.5%. Its dual alkyl cyclic ether structure greatly suppresses peroxide generation during storage, solving the major hidden danger of traditional low-boiling ether solvents. Featuring high boiling point, low water solubility and excellent solubility for various organic substances, it becomes an advanced safe solvent for high-end fine chemical production.

Core downstream application sectors: anhydrous reaction solvent for organometallic synthesis (Grignard, organolithium, asymmetric catalytic coupling); extraction and recrystallization medium for pharmaceutical bulk drugs, chiral intermediates and natural plant extracts; slow-evaporating high-gloss diluent for polyurethane and acrylic industrial coatings; laboratory universal green solvent replacing hazardous short-chain ethers. We supply standard industrial synthesis grade and ultra-dry anhydrous special grade for strict water-free production processes.

Packed in sealed anti-rust steel drums for full-container sea freight. Classified UN1993 Class 3 flammable liquid dangerous goods, we provide complete IMDG transport, customs clearance and REACH compliance certificates for stable long-term global supply to pharmaceutical factories, fine chemical labs and coating manufacturers.

Certificates

Basic Info

Product Name:

Pentanoyl chloride

Other Name:

Pentanoyl chloride;Valeryl chloride;Valeroyl chloride;n-Pentanoyl chloride;Pentanoic acid chloride;n-Butanecarbonyl chloride;n-Valeryl chloride

CAS No.:

638-29-9

Molecular Formula:

C5H9ClO

InChIKeys:

InChIKey=XGISHOFUAFNYQF-UHFFFAOYSA-N

Molecular Weight:

120.58

Exact Mass:

120.58

BRN:

506293

EC Number:

211-330-1

UNII:

KJ3B4CY5GG

UN Number:

2502

DSSTox ID:

DTXSID2034091

HScode:

29159080

Categories:

Bulk Drug Intermediates

Characteristics

PSA:

17.1

XLogP3:

2.05

Appearance:

Clear colorless to light yellow Liquid

Density:

1.0±0.1 g/cm3

Melting Point:

-110 °C

Boiling Point:

109 °C

Flash Point:

91 °F

Refractive Index:

1.417

Water Solubility:

Decomposes in water

Storage Conditions:

Flammables area

Flammability characteristics:

Flammable; emit toxic hydrogen chloride gas in water

Air and Water Reactions:

Highly flammable. Fumes in air. Reacts exothermically with water to generate hydrochloric and valeric acids, which are corrosive.

Reactive Group:

Acyl Halides, Sulfonyl Halides, and Chloroformates

Reactivity Alerts:

Highly Flammable

Reactivity Profile:

VALERYL CHLORIDE is acidic. Incompatible with water, with bases, including amines, and with strong oxidizing agents and alcohols. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291].

See More Pentanoyl chloride Properties 

Hazard Identification

Classification of the substance or mixture

Flammable liquids, Category 3

Corrosive to metals, Category 1

Skin corrosion, Sub-category 1A

Serious eye damage, Category 1

Acute toxicity - Category 3, Inhalation

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 3

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H226 Flammable liquid and vapour H290 May be corrosive to metals H314 Causes severe skin burns and eye damage H331 Toxic if inhaled H412 Harmful to aquatic life with long lasting effects
Prevention	P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P234 Keep only in original packaging. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash ... thoroughly after handling. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment.
Response	P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse affected areas with water [or shower]. P370+P378 In case of fire: Use ... to extinguish. P390 Absorb spillage to prevent material damage. P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P363 Wash contaminated clothing before reuse. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P316 Get emergency medical help immediately. P321 Specific treatment (see ... on this label). P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P317 Get medical help.
Storage	P403+P235 Store in a well-ventilated place. Keep cool. P406 Store in a corrosion resistant/...container with a resistant inner liner. P405 Store locked up. P403+P233 Store in a well-ventilated place. Keep container tightly closed.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

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 Pentanoyl chloride 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.

Inquiry History

3 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	n-Valeryl Chloride	1000 KG	May 3, 2026
United States	Valeroyl chloride	29.32 MT	May 28, 2024
India	Valeroyl chloride	29.35 TON	May 24, 2024

Post an enquiry for this product

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