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Home > Organic Chemistry > Ketones > 3,3a,6,6a-Tetrahydro-2H-cyclopenta[b]furan-2-one for Sale > CAS 34638-25-0 98% Purity Chiral Building Block for Organic Synthesis
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CAS 34638-25-0 98% Purity Chiral Building Block for Organic Synthesis

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Unit Price:

$90-117/G FOB

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CAS No.:

34638-25-0

Grade:

Reagent Grade

Content:

99%

Port:

qingdao

Brand:

//

Packaging:

1g/vial, 5g/vial, 10g/vial, 25g/vial, 100g/vial

Price valid (until):

2026-08-03

Company Type:
Trader
Location:
China
Qualification:
Main Products:

3-(1-Naphthoyl)indole

  • Product Description

  • Seller Information

  • Description

    Shop CAS 34638-25-0 98% Purity Chiral Building Block for Organic Synthesis-Detailed Image 1

    —— Product Specification ——

    Parameter Specification Details
    Product Name 3,3a,6,6a-Tetrahydro-2H-cyclopenta[b]furan-2-one //
    CAS Number 34638-25-0 34638-25-0 
    Molecular Formula C₇H₈O₂ 7 carbons, 8 hydrogens, 2 oxygens 
    Molecular Weight 124.14 g/mol — 
    Appearance White to off-white solid Visual inspection
    Purity ≥98.0% Determined by HPLC/GC
    Density 1.196 g/cm³ (Predicted) — 
    Boiling Point 263.1°C at 760 mmHg (Predicted) — 
    Flash Point 104.0°C (Predicted) — 
    Storage Cool, dry place, store under inert gas Sealed containers, protect from moisture
    Packaging 1g, 5g, 10g, 25g, 100g Amber glass vials
    Application Research use only Organic synthesis, chiral building block


    —— Product Detail ——

    Product Overview

    3,3a,6,6a-Tetrahydro-2H-cyclopenta[b]furan-2-one (CAS 34638-25-0) is a fused bicyclic lactone (cyclic ester) that serves as a valuable chiral building block in organic synthesis . Its structure consists of a cyclopentene ring fused to a γ-butyrolactone ring, creating a rigid, chiral framework.

    With the molecular formula C₇H₈O₂ and a molecular weight of 124.14 g/mol, this compound is a versatile intermediate for constructing more complex molecular architectures. The molecule exists as a single enantiomer, making it particularly useful for asymmetric synthesis

    Mechanism of Action

    As a synthetic intermediate, this compound itself is not pharmacologically active. Its primary value lies in serving as a versatile building block in organic synthesis, especially for the preparation of natural products and pharmaceutical intermediates. The lactone functionality provides a reactive handle for ring-opening reactions, while the alkene moiety offers opportunities for selective functionalization.

    Packaging & Shipping

      • Research quantities: 1g, 5g, 10g amber glass vials

      • Bulk quantities: 25g, 100g amber glass bottles

      • Custom packaging available upon request

      • Not classified as hazardous material for transport under normal conditions

    Company profile ——


     Shop CAS 34638-25-0 98% Purity Chiral Building Block for Organic Synthesis-Detailed Image 2

    Jinan Topfull Chemical Co., Ltd. is an international company rooted in China, specializing in the export of chemical products.

    Our company is committed to making every effort to provide ideal chemical products to potential customers worldwide, including but not limited to: organic/inorganic reagents, biological reagents, plant extracts, pharmaceutical intermediates, active pharmaceutical ingredients (APIs), reference standards, reference substances, peptides, and more. Meanwhile, we have established long-term and stable cooperative relationships with university laboratories and off-campus research institutions, enabling us to offer tailored product services based on customers' actual needs.

    We currently support customized services for most product categories, with supply quantities ranging from milligram (mg), gram (g) to kilogram (kg) levels, as well as wholesale. Product purity covers the full spectrum from 90% to 99.9%, providing customers with one-stop convenient services.

    To date, our products have been exported to developed countries such as the United States, Australia, Canada, Mexico, as well as EU member states including France, Germany, and many other countries and regions such as Nigeria, Ghana, Southeast Asia, and other parts of Asia. Our product quality and services have consistently received high praise.

    Looking ahead, our company will continue to serve as a bridge connecting China and the world, delivering high-quality products and services to global customers.

     

    Shop CAS 34638-25-0 98% Purity Chiral Building Block for Organic Synthesis-Detailed Image 3

    Shop CAS 34638-25-0 98% Purity Chiral Building Block for Organic Synthesis-Detailed Image 4

    —— Q&A ——

    Q1: How to confirm the product quality before placing orders?
    A: By sending you available samples. Or if you have special requirements for the goods, we can prepare samples according to your requirements for confirmation.

    Q2: Can you supply free samples?
    A: Yes, we can provide a free sample, but the shipping cost will be paid by the customers. You can either pay the shipping cost or arrange a courier to collect the samples.

    Q3: How do you treat quality complaints?
    A: All our products are strictly tested by our QC and confirmed by QA; unqualified material will not be released to customers. If any quality problem is confirmed to be caused by us, we will replace the goods or refund your payment immediately.

    Q4: What is your MOQ? Is there a discount?
    A: For highvalue products, our MOQ starts from 1g and generally starts from 10g. For other lowprice products, our MOQ starts from 100g and 1kg.
    Q: Is there a discount?
    A: Yes, for larger quantities, we always support with better prices.

    Q5: How to start orders or make payments?
    A: You can send us your Purchase Order (if your company has one), or just send a simple confirmation by email or via Trade Manager. We will then send you a Proforma Invoice with our bank details for your confirmation, and you can make payment accordingly. If you have other preferred payment methods, we are open to discussion and negotiation.



    Certificates
    • CAS 34638-25-0 98% Purity Chiral Building Block for Organic Synthesis Certificates 1

    Basic Info
    Product Name:

    3,3a,6,6a-Tetrahydro-2H-cyclopenta[b]furan-2-one

    Other Name:

    2H-Cyclopenta[b]furan-2-one,3,3a,6,6a-tetrahydro-;3,3a,6,6a-Tetrahydro-2H-cyclopenta[b]furan-2-one;2-Oxabicyclo[3.3.0]oct-6-en-3-one;2H,3H,3aH,6H,6aH-Cyclopenta[b]furan-2-one;3,3a,6,6a-Tetrahydrocyclopenta[b]furan-2-one

    CAS No.:

    34638-25-0

    Molecular Formula:

    C7H8O2

    InChIKeys:

    InChIKey=RYBPGUMSFWGGLP-UHFFFAOYSA-N

    Molecular Weight:

    124.139

    Exact Mass:

    124.14

    EC Number:

    609-011-0

    DSSTox ID:

    DTXSID10404515

    Categories:

    Ketones

    Characteristics
    PSA:

    26.3

    XLogP3:

    0.8

    Boiling Point:

    80 °C @ Press: 1 Torr

    Hazard Identification

    Classification of the substance or mixture

    Acute toxicity - Category 4, Oral

    Skin irritation, Category 2

    Eye irritation, Category 2

    Specific target organ toxicity – single exposure, Category 3

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Warning

    Hazard statement(s)

    H302 Harmful if swallowed

    H315 Causes skin irritation

    H319 Causes serious eye irritation

    H335 May cause respiratory irritation

    Precautionary statement(s)
    Prevention

    P264 Wash ... thoroughly after handling.

    P270 Do not eat, drink or smoke when using this product.

    P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...

    P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

    P271 Use only outdoors or in a well-ventilated area.

    Response

    P301+P317 IF SWALLOWED: Get medical help.

    P330 Rinse mouth.

    P302+P352 IF ON SKIN: Wash with plenty of water/...

    P321 Specific treatment (see ... on this label).

    P332+P317 If skin irritation occurs: Get medical help.

    P362+P364 Take off contaminated clothing and wash it before reuse.

    P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

    P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

    P319 Get medical help if you feel unwell.

    Storage

    P403+P233 Store in a well-ventilated place. Keep container tightly closed.

    P405 Store locked up.

    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.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    3-(1-Naphthoyl)indole

    Location:

    RONGSHENG BEIYUANDAJIE 9, LICHENG DISTRICT,JINAN, SHANDONG CHINA

    Year of Establishment:

    2022

    Jinan Topfull Chemical Co., Ltd. is a global chemical Industrial and focuses on advanced chemical technology. Specialized in Cosmetic materials, water treatment, fine chemicals and so on. We are looking forward to working together with the people of all circles at home and abroad to seek common development!
  • Country Product Purchase Quantity Date Posted
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