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National Institutes for Food and Drug Control 140686-201303 Standard Substance Usage Instructions
The usage instruction manual describes the Tryptophan standard substance, its chemical identity, purity, packaging, and recommended handling procedures. It is intended for laboratories measuring amino‑acid content and for identification purposes.
Key information includes the molecular formula C11H12N2O2, molecular weight 204.23, CAS number 73-22-3, purity of 99.9%, packaging in a brown glass vial, and a specification of 100 mg per vial. Storage should be light‑protected and sealed, and the material remains valid until a formal discontinuation notice is issued. This manual is written in Chinese.
Covers: Category · Batch Number · Molecular Formula · Molecular Weight · CAS Number · Purpose
Latest National Institutes for Food and Drug Control manuals
National Institutes for Food and Drug Control 140686-201303 Standard Substance Usage Instructions
Product Leaflet 2 pages · 216 KB · ZHThis document provides usage instructions, specifications, and storage guidelines for the Tryptophan standard substance (batch 140686-201303) from the…
Questions answered in National Institutes for Food and Drug Control manuals
What is the purity of the Tryptophan standard?
The content is 99.9%.
From: National Institutes for Food and Drug Control 140686-201303 Standard Substance Usage Instructions
How should the Tryptophan standard be stored?
Store it protected from light and keep it sealed.
From: National Institutes for Food and Drug Control 140686-201303 Standard Substance Usage Instructions