Newmarket, Ontario · Serving labs worldwide since 2007
Your trusted source for Reference Standards, manufactured and certified in-house
Manufactured, characterized, and certified in our purpose-built Canadian facility, TLC Pharmaceutical Standards delivers complex organic reference standards trusted by pharmaceutical and biotechnology laboratories. Available from stock or made to order, every standard is supplied with a comprehensive Certificate of Analysis.
COA with every compound
Synthesis & analytical labs in-house
01 — News
The latest from the lab.
Oct 25, 2026Event
Meet TLC at CPHI India 2026
We’re pleased to share that TLC will be exhibiting at CPHI India 2026, taking place November 23–25 at IICC, Yashobhoomi, Dwarka, Delhi.
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Visit us at booth 1F31 to explore our growing portfolio of pharmaceutical reference standards, including impurities, nitrosamines, and stable isotope-labeled compounds. We’ll also share our expanding service capabilities—from custom synthesis to the isolation, identification, and characterization of unknown impurities—to support your pharmaceutical research and analytical development.
Our team looks forward to discussing your analytical challenges, reconnecting with customers and partners, and exploring new opportunities to work together.
Planning to attend? Email our team at indiasales@tlcstandards.com to schedule a meeting, or stop by booth 1F31. We look forward to seeing you!
May 18, 2026New product
New reference standard: Tacrolimus-13C-d4
Following customer feedback, we are pleased to announce the successful development of Tacrolimus-13C-d4, a new stable isotope-labeled reference standard designed to provide a larger mass shift for improved performance as an internal standard.
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While our previously developed Tacrolimus-13C-d2 standard was successfully used in a range of analytical applications, several clients working with this large and structurally complex molecule indicated that a greater mass difference was preferred for highly sensitive LC-MS/MS methods. In response, our laboratory rapidly adapted to this market need and developed Tacrolimus-13C-d4—demonstrating our flexibility and commitment to delivering reference standards aligned with evolving customer requirements.
Tacrolimus-13C-d4 has been produced with high isotopic enrichment and excellent chemical purity as detailed in its COA, making it well suited for analytical applications including:
- LC-MS/MS quantitative analysis
- Bioanalytical method development and validation
- Pharmacokinetic and therapeutic drug monitoring studies
- GLP-compliant analytical workflows
The development of a highly enriched multi-labeled tacrolimus standard presents significant synthetic and analytical challenges, and materials of this type can be difficult to source at consistently high quality.
Please contact TLC for availability and quotation.
May 10, 2026Event
CPHI Shanghai 2026
We’re pleased to share that TLC will be exhibiting at CPHI Shanghai 2026!
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From June 16-18, visit us at booth E2G26 to learn more about our latest developments, discuss industry trends, and explore new collaboration opportunities in the pharmaceutical and healthcare sectors.
Our team looks forward to connecting with partners and professionals from across the globe and sharing how TLC continues to support innovation and growth in the industry.
See you in Shanghai!
Inside the lab
Synthesis and analytical labs, under one roof.
Every stage—from route development to synthesis, characterization, and certification—is performed in the same facility, ensuring consistency, traceability, and quality at every step.
HPLC · NMR · MS
Comprehensive characterization
ISO/IEC 17025 · ISO 17034
Accredited testing & reference material production
ISO 9001
Quality management system
02 — Why TLC
The TLC advantage.
Where others stop, we start.
Organic synthesis experts in challenging and high-uncertainty routes.
A COA for every compound
Complete documentation, every product, no exceptions.
When quality and speed matter most
The highest standards with rapid delivery timelines
Full in-house facilities
Synthesis and analytical labs under one roof for fully integrated development.
A comprehensive inventory of available standards
24,000+ compounds in stock, expanding by ~2,000 annually.