VendorInvestigateIndependent Testing Bureau
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Authentic report — verified

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

Product
D-Tryptophan
Specification
99.0% · 100g
Report Type
Heavy Metals / ICP-MS
Catalogue
GL-UA-0020
Issued
2026-03-19
D-Tryptophan Heavy Metals / ICP-MS report by VendorInvestigate
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Verification reference: 54179-D-Tryptophan_QY3RUS8EJWQF