PhysChem CRO services
Fast, reliable and cost-effective physchem outsourcing
Overview
Available services include:
Ionisation, Lipophilicity, Solubility, Dissolution, Solid State, Surface Activity & Toxicity.
Our Analytical Service provides a reliable and cost-effective source for outsourcing PhysChem measurements. The service is available all year round to any clients, worldwide. Our services are aimed at three broad stages of the drug discovery and development process:
Medicinal Chemistry & Hit to Lead - ADME Screening Assays
Pre-formulation - "Gold standard" pKa, logP/D, solubility & dissolution
Formulation & Development - Additional Solid State Services
For each sector our portfolio of ADME services is designed to provide optimum levels of information, reliability and turnaround.
Why choose Sirius Analytical?
Since 1991 we have provided an analytical service, during which time thousands of compounds have been measured for a wide range of PhysChem properties. We are proud to have a high level of repeat business, from customers who understand and appreciate the reliability of our analysts and the exceptional depth of information we provide.
Our experienced chemists provide the highest quality service using our state-of-the-art instrumentation. We work with our clients to ensure the most applicable analytical protocol is used. All analyses are fully confidential.
By outsourcing measurements directly to Sirius Analytical, you can be confident that the very latest techniques will be applied to your compounds, and that the analysts running the experiments will have the experience and knowledge to answer any questions about the analysis methods.
All work is carried out under strictly controlled conditions, and comprehensive analysis reports are provided . All calibrations and reagent standardisations are recorded. Assay results are quoted with reference to all relevant calibrations, standardisations, instrument identification and operator identification. All relevant documentation is available for audit.
To use the Analytical Service, select from the relevant area on the left, complete the relevant sample registration form for your required assays and send it to us with your samples. If required, please send your Confidentiality Agreement in advance for signature and filing.
Standard Assay conditions
Where applicable, our standard assay conditions are:
| Temperature | 25°C |
| Ionic strength background | 0.15M potassium chloride |
| CoSolvents | methanol, ethanol, dioxane, DMSO, acetonitrile, MDM-mix, THF, DMF |
| Partition solvent | octanol |
| Standard screening pH | pH7.4 |
For the screening services, samples should be 10mM DMSO solutions.
Alternate conditions are supported; however a surcharge may be made to cover the additional work required.
Please contact us for further information.
Custom Analysis
Our flexible titration based instruments can be applied to other areas of research, including:
Dissolution & Precipitation rates
Parenteral Solubilization
Polymorphism
Salt Solubility
pKa, logP, logD, Solubility and Dissolution studies at different temperatures
Stability
Solubility in Excipients and other mixtures
Supersaturation experiments
Liposome partitioning
Compound behaviour in 100% organic solvents
Protonation of peptides and macromolecules
Determination of isoelectric point
pH stat experiments
Metal binding
Please contact us for more information.
How we use your detailsNew Scientific Paper Published
07.12.09
New paper from Sirius explains how our solubility measurements work, and introduces new methods for evaluating supersaturation.
New Scientific Paper Published
01.07.10
New paper - Study of pH-dependent solubility of organic bases. Revisit of Henderson-Hasselbalch relationship.
Physchem Forum 9, Barcelona
17.09.10
Sirius will exhibit at and sponsor the next Physchem Forum meeting in Barcelona