Skip to Content

尊敬的客户:

目前国际形势复杂多变,关税政策尚不明朗,这可能对我们的产品价格产生一定影响。在此情况下,我们希望就订单事宜与您进行友好沟通。

基于当前的不确定性,如果您选择在此期间下单,我们将保留根据实际情况调整价格的权利。同时,我们也理解市场变化可能给您带来的困扰,因此如果在订单实际发货前因关税政策变动导致价格出现较大波动,默克将与您进行协商讨论并视情况对订单进行调整或取消。

关于应对近期政策变化的重要更新,请点击此处查看详情。

Merck
CN
All Photos(6)

Key Documents

Safety Information

920193

Sigma-Aldrich

Cyrene 2-Methyltetrahydrofuran Blend

greener alternative

BioRenewable, DMF and NMP Substitute

Synonym(s):

2-MeTHF Solution, 2-Methyltetrahydrofuran solution, Cyrene solution

Sign Into View Organizational & Contract Pricing

Select a Size

3 X 5 ML
¥846.80

¥846.80


Please contact Customer Service for Availability

Request a Bulk Order

Select a Size

Change View
3 X 5 ML
¥846.80

About This Item

Empirical Formula (Hill Notation):
C6H8O3
Molecular Weight:
128.13
UNSPSC Code:
12352212
NACRES:
NA.07

¥846.80


Please contact Customer Service for Availability

Request a Bulk Order

form

liquid

contains

30-80 ppm BHT as stabilizer

greener alternative product characteristics

Safer Solvents and Auxiliaries
Use of Renewable Feedstocks
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

renewable carbon content

100%

density

1.153 g/mL

greener alternative category

General description

Cyrene 2-Methyltetrahydrofuran Blend with BHT as an inhibitor is specially formulated for use in automated processes and applications where lower viscosity is required, making it easier to handle while maintaining high yields.

This Cyrene blend is an alternative for NMP and DMF in many cross-coupling reactions. Neither Cyrene nor 2-Methyltetrahydrofuran have any genotoxic or mutagenic concerns associated with their use, making them much safer alternatives to traditional aprotic solvents.

This new blend is part of our Biorenewable product line, meaning that it is made from renewable resources and does not compete with food resources for its production, making it more environmentally sustainable for the future. The material has also been independently certified as 100% renewable carbon.
We are committed to bringing you greener alternative products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product is BioRenewable and thus aligns with "Safer Solvents and Auxiliaries" and "Use of Renewable Feedstocks". Click here for more information.

Application

This cosolvent solution has been shown to have similar reaction yields to NMP and DMF for many cross-coupling reactions, such as:

Features and Benefits

  • Independently certified as 100% renewable carbon.
  • Closer physical properties of NMP and DMF while maintaining high reaction yields.
  • Sustainably produced and environmentally less hazardous than more traditional petroleum aprotic solvents
  • Both Cyrene and 2-MeTHF are also much safer for handling without the genotoxic concerns of other solvents.
  • It has a lower viscosity than neat Cyrene making it more optimized for automated processes.

Legal Information

CYRENE is a trademark of Circa Group Pvt Ltd

Pictograms

FlameCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2

Supplementary Hazards

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Regulatory Information

危险化学品

  • Choose from one of the most recent versions:

    Certificates of Analysis (COA)

    Lot/Batch Number

    Don't see the Right Version?

    If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

    Already Own This Product?

    Find documentation for the products that you have recently purchased in the Document Library.

    Visit the Document Library

    1. What is a BioRenewable solvent?

      BioRenewable solvents are sourced from renewable and sustainable biobased materials, such as soy/palm oil, wood waste, hay or corn byproducts, etc. It is important to highlight that our BioRenewable products do not compete with food production.

    2. Why should you use BioRenewable solvents?

      You will contribute to create a sustainable world, significantly lowering environmental impact. Biorenewable solvents also decrease petroleum sources dependency, have higher recovery rates, and/or are safer for handling and disposal.

    3. Do BioRenewable solvents have a similar quality to petroleum-based solvents?

      BioRenewable solvents can have the same or higher purity level compared to traditional solvents. These solvents are free of the many byproducts of petroleum manufacturing, such as benzene, aldehydes, and ethers.

    Cyrene? blends: a greener solvent system for organic syntheses
    Sullivan C, et al.
    Green Chemistry, 24, 7184-7193 (2022)
    Improved 2-pyridyl reductive homocoupling reaction using biorenewable solvent Cyrene?(dihydrolevoglucosenone)
    Webb DA, et al.
    RSC Sustainability, 1, 1522-1529 (2023)

    Related Content

    Why should you have to choose between solvents that are ecological and those that are reliable? Enjoy both at once with our biorenewable and greener solutions. Cyrene™ solvent is a new dipolar aprotic alternative to common REACH restricted solvents, such as N methyl-2-pyrrolidone (NMP) and Dimethylformamide (DMF).

    Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

    Contact Technical Service