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MSQC9

Sigma-Aldrich

SILuMAb Infliximab Stable-Isotope Labeled Monoclonal Antibody

recombinant, expressed in CHO cells

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Synonym(s):
Mass spectrometry standard, Infliximab, SIL Infliximab, Stable isotope labelled Infliximab

recombinant

expressed in CHO cells

Quality Level

antibody product type

primary antibodies

Assay

≥90% (SDS-PAGE)

packaging

vial of 100 μg

shipped in

wet ice

storage temp.

−20°C

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This Item
MSQC11MSQC29MSQC27
shipped in

wet ice

shipped in

wet ice

shipped in

wet ice

shipped in

wet ice

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

recombinant

expressed in CHO cells

recombinant

expressed in CHO cells

recombinant

expressed in CHO cells

recombinant

expressed in CHO cells

antibody product type

primary antibodies

antibody product type

primary antibodies

antibody product type

-

antibody product type

-

assay

≥90% (SDS-PAGE)

assay

≥90% (SDS-PAGE)

assay

≥90% (HPLC)

assay

≥90% (HPLC)

General description

SILuMAb 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. SILuMAb Infliximab Stable-Isotope Labeled Monoclonal Antibody is for R&D use only. Not for drug, household, or other uses.

Physical form

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

Preparation Note

Produced utilizing enriched media containing stable isotope labeled amino acids are 13C6, 15N4-labeled Arginine and 13C6, 15N2-labeled Lysine.
SILuMab Infliximab Stable-Isotope Labeled Monoclonal Antibody is designed to be used as a internal standard for analysis of Infliximab in human serum.

Reconstitution

SILuMab 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.

Analysis Note

Quantitative
MRM settings provided (xls)

Legal Information

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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Hyejin Kim et al.
Frontiers in molecular biosciences, 9, 1006866-1006866 (2022-12-17)
Characterization of therapeutic monoclonal antibodies (mAbs) represents a major challenge for analytical sciences due to their heterogeneity associated with post-translational modifications (PTMs). The protein glycosylation requires comprehensive identification, which could influence on the mAbs' structure and their function. Here, we

Articles

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

Infliximab, a chimeric monoclonal antibody, is used to treat rheumatoid arthritis, psoriatic arthritis, Crohn’s disease, and other autoimmune diseases.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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