Stable isotope labelled vitamins are used extensively by research and diagnostic laboratories, and are now key compounds as laboratory testing transistions from traditional to advanced techniques such as LC-MS/MS. Vitamin D and related metabolites are of key interest for a variety of diseases ranging from bone health, intestinal absorption, immune diseases and cancer. Vitamin D can be obtained either through dermal synthesis from sunlight or diet. In the liver it is hydroxylated at the 25 position. Then hydroxylation in the kidney at the 1 position produces 1,25-Dihydroxyvitamin D, the most biologically active form.

All products are provided with a Certificate of Analysis confirming isotopic enrichment and chemical purity to meet the highest of standards.

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Our synthetic chemists have established an excellent reputation for the production of high quality, stable isotope labelled Vitamins so if you are unable to locate what you need, please call or email us with your requirements or contact us, we will be delighted to help.

We have a huge range of vials, caps, septa and inserts available to meet all your needs whatever the application: Chromatography, Spectroscopy, Sampling or Storage!

Our comprehensive range includes different volumes of vials in glass or polypropylene, clear or amber with crimp or screwthread finish, with crimp seals, screwthread hole-caps and solid caps, in various colours, complete with a wide range of septa or liners made form rubber, silicone, Viton, PTFE, pre-cut or solid. For low volume sampling we offer many different inserts in glass or polypropylene.

We have many product variations and combinations so if you can’t find what you require simply contact us and we will be pleased to help. We can also make custom products whether a vial or a special septa to suit your needs.

We are able to provide samples for most products so please don’t hesitate to ask!

Here is a list of some of the new deuterated compounds that have recently been synthesised that are now available. Click on the compound for ordering information.

We are delighted to once again be supporting the Breast Cancer Awareness Campaign by making a donation for every pack of limited edition PINK Caps or Vials we supply, whilst stocks last.

Limited editionTHINK PINK! products available include Low Volume Polypropylene Vials, 9mm Screw Caps, Snap Caps and Stackable Vial Rack:

• V1850    500μl Pink Polypropylene Robotic Vial, 9mm Thread
• V1851    500µl Pink Polypropylene 11mm CR/Snap Ring

• V1800    9mm Cap, Pink, PTFE/Red Rubber
• V1801    9mm Cap, Pink, PTFE/Silicone
• V1802    9mm Cap, Pink, PTFE/Silicone/PTFE
• V1803    9mm Cap, Pink, PTFE/Silicone with Slit

• V1855    11mm Snap Top Cap, Pink,with Starburst
• V1856    11mm Snap Top Cap, Pink,10mil PTFE Lined
• V1857    11mm Snap Top Cap, Pink,PTFE/Butyl Rubber Lined
• V1858    11mm Snap Top Cap, Pink,PTFE/Silicone Lined
• V1859    11mm Snap Top Cap, Pink,PTFE/Silicone/PTFE Lined
• V1860    11mm Snap Top Cap, Pink,PTFE/Silicone with Slit Lined
• V2129    50 Position Pink Stackable Rack for 12mm Vials

• Ideal for filtering sample volumes <2ml
• Dead volume < 10µl
• 8 different membrane types
• Double connection: Luer + Mini Tip

Certified Klarity^TM syringe filters are made using a polypropylene medical grade housing with Luer Lock and Luer slip fittings in compliance with ISO 594-1. Each filter is sealed using an external ring insert to maintain membrane integrity and best performance. Klarity^TM syringe filters are colour coded for easy identification. All Klarity^TM syringe filters are manufactured in compliance with ISO 9001 and tested in a ISO 17025 accredited facility. The manufacturing methods used eliminate variable results through controlled manufacturing consistency batch to batch, filter to filter. Samples and raw data of all syringe filter batches and membranes are stored for 5 years from production for future reference.

All Klarity^TM syringe filters are certified for conformance:

• 100% of the syringe filters are visually inspected following quality specifications
• Each lot of filters is tested for external dimensions
• Bubble Point
• Burst Pressure
• Filter Integrity
• Water Flow Rate
• UV Extractables and compliance with all technical procedures

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