We’re devoted to Hemostasis Research and Diagnostics

Rossix is a Swedish developer and manufacturer of reagents for hemostasis research, diagnostics and quality control. We are experts in chromogenic assays for coagulation factors with experience dating back to the development of the first commercial chromogenic assay for Factor VIII in the 1980’s.

Our products

Highlights

Therapeutic Immunoglobulins – Rox Factor XIa evaluated by NIBSC for detection of low levels of FXIa

Premium Products for Hemostasis Research, Diagnostics and Quality Control

Our high quality products and know how serve customers all over the world. We offer premium chromogenic assays for Factor VIII, Factor IX and Prothrombin. Our highly sensitive chromogenic assays for activated Factor IX (FIXa) and activated Factor XIa (FXIa) are used in quality control of Factor IX and immunoglobulin products in the pharmaceutical industry. Rossix is also an OEM supplier of reagents, serving international OEM-clients with customized solutions and technical support.

Product range

Our product range consists of chromogenic assays for coagulation factors, phospholipid emulsions and buffers. We also have a proven track record of developing and manufacturing customized reagents for the pharmaceutical and diagnostic industry.

Our products

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Rox Factor VIII

Rox Factor VIII is a chromogenic kit for the determination of Factor VIII (FVIII) activity in human plasma and FVIII containing concentrates. For In Vitro Research Use Only.
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Rox Factor IX

Rox Factor IX is a chromogenic kit for determination of Factor IX (FIX) activity in plasma and FIX containing concentrates. CE marked and approved for In Vitro Diagnostic Use in Europe and Australia. Outside Europe Rox Factor IX is available for In Vitro Research Use Only.
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Rox FIX-A

A highly sensitive chromogenic kit for determination of activated Factor IX activity (FIXa). Suitable for determining the degree of preactivation in recombinant Factor IX products and purified FIX concentrates.
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Rox Factor XIa

A highly sensitive chromogenic kit for determination of activated Factor XI activity (FXIa). Especially suitable for detecting FXIa contamination in Immunoglobulin products.
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Rox Prothrombin

A chromogenic kit for determination of Prothrombin (FII) functional activity in plasma and FII containing concentrates. Based on the prothrombinase system.
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Phospholipid-TGT

A long term stable 0.5 mM Phospholipid emulsion with high procoagulant activity suitable for use in global thrombin generation methods and for use in other methods comprising phospholipids for determination of pro- and anticoagulant proteins.
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Phospholipid

A long term stable 0.25 mM Phospholipid emulsion with high procoagulant activity suitable for use in global NAPTT methods and for use in other methods comprising phospholipids for determination of pro- and anticoagulant proteins.
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Factor IXa Calibrator and Control

Lyophilized preparations of human Factor IXa (FIXa) intended for use with the Rox FIX-A kit.
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Factor XIa Calibrator and Control

Lyophilized preparations of human Factor XIa (FXIa) intended for use with the Rox Factor XIa kit.
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Tris BSA Buffer

Diluent buffer, stock solution, for sensitive proteins such as coagulation factors. Diluted buffer fulfils the Ph Eur requirements on a coagulation Factor VIII diluent.
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Customized Products

Rossix has a long and proven track record of providing customized reagents and services to the diagnostic and pharmaceutical industry.

Our legacy

From Sweden to the World

Rossix was founded by Dr Steffen Rosén who developed the first commercial chromogenic assay for Factor VIII. Today, we serve customers all over the world from our office located on the west coast of Sweden, in the building where the world's first chromogenic substrates for coagulation factors were synthesized. This is our legacy and expertise and we gladly share it with you!

Mission

Cutting edge expertise and exceptional service

As a company working in a highly specialized field we aim for a close relationship with every customer. When reaching out to us, you will get into direct contact with the persons developing and manufacturing the products. This ensures that you will always talk to someone who has deep knowledge and experience of our products and assay methodology.