VendorInvestigatorIndependent Testing Bureau
✓

Authentic report — verified

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

Product
DL-Tryptophan
Specification
99.0% · 5kg
Report Type
Heavy Metals / ICP-MS
Catalogue
GL-GA-0075
Issued
2026-03-22
DL-Tryptophan Heavy Metals / ICP-MS report by VendorInvestigator
Verification reference: 34406-DL-Tryptophan_SCGF7WS3M33E