This document provides usage instructions, specifications, and storage guidelines for the Tryptophan standard substance (batch 140686-201303) from the…
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.
| Molecular Formula | C11H12N2O2 |
|---|---|
| Molecular Weight | 204.23 |
| CAS Number | 73-22-3 |
| Purity | 99.9% |
| Packaging | Brown glass vial |
| Specification | 100 mg per vial |
| Storage Condition | Light‑protected, sealed |
| Usage Method | Weigh and dissolve according to quality standard |
The content is 99.9%.
Store it protected from light and keep it sealed.
Weigh the material according to the quality standard and dissolve it for use.
No specific expiration date; it remains valid until a discontinuation notice is issued by the institute.
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