VendorInvestigatorIndependent Testing Bureau
✓

Authentic report — verified

This certificate was issued by VendorInvestigator and matches our records. Reference ID confirmed.

Product
L-Tryptophan
Specification
99.0% · 1kg
Report Type
Heavy Metals / ICP-MS
Catalogue
GL-GA-0018
Issued
2026-03-18
L-Tryptophan Heavy Metals / ICP-MS report by VendorInvestigator
Verification reference: 42374-L-Tryptophan_GFQEVAWRU49J