EFSA toxicology reference values
L-tryptophan
L-tryptophan (CAS 73-22-3). Cannabis testing data across 0 states. Action levels when present, testing requirements, compliance status.
L-tryptophan is a cannabis analyte contaminant represented in the cannabis public dataset.
Substance Identity
Analyte identity and classification used for this cannabis substance page.
Contaminant Class Badge
Color-coded cannabis class signal for scanning pesticide, metal, solvent, mycotoxin, and potency pages.
Dataset Snapshot
Compact public-data summary for page quality, state coverage, lab rows, and potency sample groups.
EFSA Substance Identity
EFSA substance identity rows matched by chemical name or CAS.
EFSA Reference Values
Reference values from efsa_reference_values_v2 for toxicology and food-safety context.
| Descriptor | Value | Population | Endpoint | Body |
|---|---|---|---|---|
| Incomplete dataset | - | consumers | - | - |
| Not deemed necessary | - | other: | - | - |
| Incomplete dataset | - | other: | - | - |
| Incomplete dataset | - | consumers | - | - |
| Incomplete dataset | - | other: | - | - |
| critical study not identified | - | other: | - | other: |
| margin of safety | - | workers | - | - |
| Not deemed necessary | - | other: | - | - |
| Not deemed necessary | - | other: | - | - |
| Incomplete dataset | - | other: | - | - |
| critical study not identified | - | other: | - | other: |
| Incomplete dataset | - | other: | - | - |
EFSA Study Results
Endpoint-level study rows from efsa_study_results matched to this substance.
| Endpoint | Species | Route | Effect | Assessment |
|---|---|---|---|---|
| appearance / physical state / colour | - | - | - | experimental study |
| appearance / physical state / colour | - | - | - | experimental study |
| appearance / physical state / colour | - | - | - | experimental study |
| other: | - | - | - | tap density: (380 - 390) kg/m3 |
| other: | - | - | - | bulk density: (200 - 210) kg/m3 |
| water solubility | - | - | - | experimental study |
| Carcinogenicity_EU_PPP | - | - | - | Following a request from European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP Panel) was asked to deliver a scientific opinion on L-tryptophan, technically pure, produced using microbial fermentation by Escherichia coli strains DSM 25084, KCCM 11132P or SARI12091203and to be used as a nutritional feed additive for all animal species. L-Tryptophan produced by E. coli SARI12091203 could not be assessed because the data submitted did not permit the identity and safety of the strain, and the purity of the additive, to be determined. The EFSA Panel on Additives and Products or Substance used in Animal Feed (FEEDAP) could not conclude on the safety of this product for target animals, for consumers, users and the environment. |
| Carcinogenicity_EU_PPP | - | - | - | Following a request from the European Commission (EC), the European Food Safety Authority (EFSA) was asked to deliver a scientific opinion on the safety of L-tryptophan produced by fermentation using the genetically modified strain Escherichia coli CGMCC 7.59 for all animal species. |
| Carcinogenicity_EU_PPP | - | - | - | Following a request from the European Commission (EC), the European Food Safety Authority (EFSA) was asked to deliver a scientific opinion on the safety of L-tryptophan, technically pure, produced by fermentation using the genetically modified strain Escherichia coli CGMCC 3667 for all animal species. |
| Carcinogenicity_EU_PPP | - | - | - | According to Article 8 of Regulation (EC) No 1831/2003, EFSA shall determine whether the feed additive complies with the conditions laid down in Article 5. EFSA shall deliver an opinion on the safety for the target animals, consumer, user and the environment and the efficacy of the product L-Tryptophan, technically pure, produced by fermentation using Escherichia coli CGMCC 7.59. |
| Carcinogenicity_EU_PPP | - | - | - | Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on L-tryptophan, technically pure, produced by a genetically modified strain of Escherichia coli (FERM BP-11200) for all animal species. |
| Carcinogenicity_EU_PPP | - | - | - | Following a request from the European Commission, the European Food Safety Authority was asked to deliver a scientific opinion on L-tryptophan technically pure produced by fermentation using a genetically modified (GM) strain of Escherichia coli for all animal species. |
Cross-Reference to Chemicals / Cosmetics / Food
Internal cross-vertical links connecting cannabis rows to chemical, cosmetics, and EFSA food/toxicology context.
Frequently Asked Questions
FAQ answers are generated from the same fetched cannabis, EFSA, cosmetics, and chemical rows rendered above.
What is the regulatory limit for L-tryptophan in cannabis?
L-tryptophan does not have a numeric cannabis_contaminant_tests range in the fetched page data. The current page query does not expose a separate action-limit column.
Which states test for L-tryptophan?
L-tryptophan does not have state-level cannabis testing rows in the fetched page data.
What are the EFSA reference values for L-tryptophan?
L-tryptophan has 36 EFSA OpenFoodTox reference value rows in the cannabis database, including Incomplete dataset, Not deemed necessary, critical study not identified, margin of safety.
Is L-tryptophan also regulated in cosmetics or food?
L-tryptophan has a cosmetics ingredient cross-reference with EU status permitted. EFSA food/toxicology context is available on this page.