YISHENGMAOLIANBotanical ingredients · B2B sourcing
Ingredients / Nutritional Supplements / L-Tryptophan
L-Tryptophan — representative unbranded ingredient image

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Nutritional Supplements

L-Tryptophan

L-Tryptophan is described in the source as white powder. The source lists 99%. Identify what the percentage measures and request the method, reporting basis and complete composition for the offered grade.

Source-listed formPowder
Source-listed MOQ1 kg
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Listed product attributes

Source listing values are shown for material selection. They are not a batch certificate or a regulatory approval.

Typeamino acid
Shelf-Life24months
Dosage FormPowder
Place of OriginShaanxi, China
Product Specification99%
Storage MethodCool & dry place.
Other name2-Amino-3-(1H-indol-3-yl)propanoic acid
AppearanceWhite powder
Specification99%
TestHPLC
GradeFood grade
CAS No73-22-3
Sample10-20g — source listing only; availability, quantity, cost and delivery require confirmation.
Shelf life2 years

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Supplier-detail table · checked 2026-10-25

Compare these detail-table entries with the main attributes above. Include any difference in your grade-clarification request.

AppearanceWhite powder
Test MethodHPLC
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L-Tryptophan · selection context

Compound and grade selection

Identity reference
73-22-3
Specification statement
99%
Material appearance
White powder

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Identify the offered grade you want to discuss and describe the intended use. Add any known quantity, destination and analytical or document requirements; unresolved details can remain questions in the enquiry.

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  • Ask for the current specification, complete composition and relevant analytical records.
  • If a sample is available, confirm its identity and relationship to the offered lot.
  • Confirm commercial terms for the selected grade; catalogue values do not establish a new offer.