What is the buffer composition of the various Insulin-Transferrin-Selenium (ITS) (100X) and Insulin-Transferrin-Selenium (ITS) Select (100X) supplements?
All ITS and ITS Select supplements are formulated in Earle's Balanced Salt Solution (EBSS).
Can I store aliquots of Insulin-Transferrin-Selenium (ITS) (100X) supplements at -20 degrees C without compromising the integrity of the product?
We recommend storing all ITS and ITS Select supplements at 2-8 degrees C as there is a chance that the insulin will precipitate upon freezing and thawing.
Are all Insulin-Transferrin-Selenium (ITS) (100X) supplements offered by Thermo Fisher Scientific animal origin-free?
We offer both animal origin and animal origin-free versions of our ITS supplements. The animal origin-free product versions are referred to as ITS Select supplements.
Insulin-Transferrin-Selenium (ITS-G) (100X) (Cat. No. 41400045), Insulin-Transferrin-Selenium-Ethanolamine (ITS-X) (100X) (Cat. No. 51500056), and Insulin-Transferrin-Selenium-Sodium Pyruvate (ITS-A) (100X) (Cat. No. 51300044) are not animal origin-free.
Animal origin-free product versions are available for the ITS-G and ITS-X formulations: Insulin-Transferrin-Selenium (ITS-G) Select Supplement (100X) (Cat. No. A4000046501 and A4000046502) and Insulin-Transferrin-Selenium-Ethanolamine (ITS-X) Select Supplement (100X) (Cat. No. A4000046401 and Cat. No. A4000046402.