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Impurities
AY-0632-002
Tazarotene Acid Methyl Ester
C20H19NO2S
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Precision You Can Trust, Quality You Can Rely On.
A focused source for active ingredient reference standards and impurity reference standard materials—with the documentation your lab needs to move with confidence.
Trusted reference standards for accurate results.
01 / Start with the work
A catalog organized around what your lab needs.
02 / Search the catalog
Find a material.
Search by name, catalog code, or CAS number. Ask our team for current availability.
03 / About us
Welcome to ASYA LAB.
Founded in Turkey, ASYA LAB is led by a team of highly qualified professionals dedicated to delivering top-tier reference standard materials for analytical testing and quality control. Every standard is thoroughly characterized using validated analytical techniques—including HPLC, NMR, and Mass Spectrometry—ensuring maximum accuracy, reliability, and reproducibility in your laboratory workflows.
Talk to our teamDetailed Certificate of Analysis (CoA)
Every product includes a comprehensive CoA and Technical Data Sheet documenting exact purity, structural identification, assigned values, and complete test results.
Traceability & Quality Standards
Our products are prepared using certified instruments, calibrated reference weights, and standardized quality-control procedures to meet the highest industry standards.
04 / Why ASYA LAB
A source you can stand behind.
Documentation first
Identifiers, molecular details, grade, storage, and pack options surfaced before you ask.
Built for procurement
A direct path to quotation keeps your request moving.
Technically focused
A deliberately narrow catalog for analytical and pharmaceutical development teams.
Human support
Need a different pack or documentation? Ask a specialist, not a chatbot.
05 / Ready when you are
Tell us what your lab is looking for.
We are fully committed to supporting your analytical needs. Contact our team today for technical documentation, custom inquiries, or additional product information.