Find answers in our FAQ page.


Technical Support

Our scientists are at the bench daily to produce and validate our antibodies, so they have hands-on experience and knowledge of each antibody’s performance.

Contact a Scientist

ISO Certification

Cell Signaling Technology, Inc. (CST) is ISO 9001:2008 certified for the design, development, and production of monoclonal antibodies (mAbs). This certification attests to the rigor of CST’s Quality System, a comprehensive approach to achieving the highest possible quality, lot-to-lot reproducibility, and continuous improvement in product development, manufacturing, quality assurance, documentation, and customer support.

We welcome on-site audits by our industrial partners, and are committed to strict confidentiality and a spirit of mutual cooperation in our business collaborations.

ISO 9001:2008 certification means:

  • Reproducible processes
  • Product traceability
  • Documented product development, manufacturing & change control
  • Rigorous QA/QC records
  • Verification of corrective and preventive action (CAPA) effectiveness
  • Regular audits by ISO authorities
  • Continuous improvement