SILu^™MAb Infliximab Stable-Isotope Labeled Monoclonal Antibody

SILu^™MAb Infliximab Stable-Isotope Labeled Monoclonal Antibody (MSQC9) is a recombinant, stable isotope-labeled, monoclonal antibody which incorporates [¹³C₆, ¹⁵N₄]-Arginine and [¹³C₆, ¹⁵N₂]-Lysine. Expressed in CHO cells, it is designed to be used as an internal standard for the quantitative mass spectrometry analysis of Infliximab in human serum. Infliximab is a chimeric monoclonal antibody biologic drug that works against tumor necrosis factor alpha (TNF-a) and is used to treat autoimmune diseases.
Infliximab has been approved for the treatment of Crohn′s disease, ulcerative colitis, psoriasis, psoriatic arthritis, ankylosing spondylitis, and rheumatoid arthritis. SILu^™MAb Infliximab Stable-Isotope Labeled Monoclonal Antibody is for R&D use only. Not for drug, household, or other uses.

Poster: Quantification of Infliximab in Human Serum by LC-MS/MS Using A Full-Length Stable Isotope Labeled Internal Standard

Each vial of SILu^™Mab Infliximab Stable-Isotope Labeled Monoclonal Antibody contains the labeled antibody in a lyophilized form containing phosphate buffered saline.

Produced utilizing enriched media containing stable isotope labeled amino acids are ¹³C₆, ¹⁵N₄-labeled Arginine and ¹³C₆, ¹⁵N₂-labeled Lysine.

SILu^™Mab Infliximab Stable-Isotope Labeled Monoclonal Antibody is designed to be used as a internal standard for analysis of Infliximab in human serum.

SILu^™Mab Infliximab recovery is maximized when 0.1% formic acid is used for reconstitution of the lyophilized product.Reconstitution with other solvents may reduce recovery. Do not freeze after reconstitution.

• Briefly centrifuge the vial at ~10,000 × g to collect the product at the bottom of the vial.
• Add 500 μL of ultrapure water containing 0.1% formic acid to the vial.
• Mix the contents by gently inverting the vial a minimum of 5 times.
• Allow the vial to stand at room temperature for at least 15 minutes and repeat mixing by inversion.

Quantitative
MRM settings provided (xls)

This product is licensed under U.S. Patent No. 7,396,688 and foreign counterparts from E. I. du Pont de Nemours and Company. The purchase of this product conveys to the buyer the nontransferable right to use the purchased amount of the product for research and development only, including services for a third party for consideration. The buyer cannot sell or otherwise transfer this product, its components or materials made using this product or its components to a third party. Information about licenses for excluded uses is available from: E. I. du Pont de Nemours and Company; Attn: Associate Director, Commercial Development; DuPont Experimental Station E268; 200 Powdermill Rd.; Wilmington, DE 19803; 1-877-881-9787 (voice), 1-302-695-1437 (fax), licensing@dupont.com.

SILu is a trademark of Sigma-Aldrich Co. LLC