Cyrene™ is a bio-based solvent which demonstrates circularity, sustainability and safety at every stage of its life cycle. From fossil-free non-food feedstock, to its recyclability and end of life disposal, Cyrene™ is a safer and more sustainable alternative to traditional toxic petroleum-based solvents.
Sustainability with CYRENE™
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MADE FROM
BIOMASS
![](/fileadmin/user_upload/landing-pages/cyrene/icon-recycle-brown.png)
SUSTAINBLE &
RECYCLEABLE
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SAFER THAN
THE ALTERNATIVES
Production Process
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The benefits of using CYRENE™
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Biocompatible,
biodegradable, will not
bioaccumulate and no
harmful NOx or
SOx emissions on
decompostion
![](/fileadmin/user_upload/landing-pages/cyrene/icon-flask-brown.png)
Low-flammability,
non-corrosive
and low-toxicity
permits safer
storage, transport and
worker practices
![](/fileadmin/user_upload/landing-pages/cyrene/icon-co2-brown.png)
Independent life cycle
analysis shows that
the production of
Cyrene™ has a carbon
footprint up to 80%
lower than NMP and
DMF
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EU REACH Annex VIII
obtained,
Annex IX and US TSCA
registration underway
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Recyclable with the
development of large-
scale re-utilisation
processes in progress
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Regional, short,
resilient supply-chains
without co-product
derived bottlenecks
Other means of identification:
Dihydrolevoglucosenone
(1S,5R)-6,8-Dioxabicyclo[3.2.1]octan-4-one
CAS No.:
53716-82-8
EINECS No.:
807-130-4
Molecular formula:
C6H8O3
Appearance:
Bio-based dipolar aprotic organic solvent. Clear to pale yellow liquid at room temperature.
Molecular mass:
128.13 g/mol
Synonyms:
(R)-panthenol; D-panthenol; D-pantothenyl alcohol; dexpanthenol; pantothenol provitamin B5
- CyreneTM dipolar aprotic solvent used extensively in organic synthesis for fine chemicals including acylation reactions and metal-mediated cross-coupling reactions.
- Allows for ease of isolation and simplified purification of product.
- Can enable a reduction in PMI and reduced waste
- Has shown selective formation of single salt crystals in API crystallisation
- Biocompatibility, high solvating window and high viscosity make it ideal for drug delivery systems, allowing good separation and suspension (dispersion)
- Has shown utility as a cleaning solvent for pharmaceuticals to remove residues and minimize the risk of cross-contamination
Any questions?
We are happy to talk about how to use
these unique benefits to your products.
Sustainability Team
sustainability( at )oqema.com