5-Hydroxytryptophan
CAS 56-69-9
EC 200-284-8
Formula C11H12N2O3
MW 220.22 g/mol
Amino Acids & Peptides Personal Care & CosmeticsPharmaceuticals & Healthcare Humectant & MoisturizingAntioxidant & Stabilizer
Description
5-Hydroxytryptophan (CAS 56-69-9), also known as DL-5-HTP or DL-Hydroxytryptophan, is a naturally occurring amino acid and biochemical precursor to serotonin. It carries no assigned E-code and is catalogued under EC 200-284-8 with molecular formula C11H12N2O3.
In personal care formulations, 5-HTP functions as a skin and hair conditioner by supporting cellular repair pathways and moisture retention at the follicle and dermal level. Its antioxidant activity neutralises free radicals in topical preparations, while its humectant properties attract and bind water molecules within the stratum corneum, improving skin hydration metrics.
This compound is supplied as a solid and is subject to REACH registration requirements for EU market entry. Pharmaceutical-grade material is available for healthcare applications, with procurement quantities typically ranging from laboratory scale to bulk. Buyers should confirm grade specification and documentation requirements prior to ordering.
In personal care formulations, 5-HTP functions as a skin and hair conditioner by supporting cellular repair pathways and moisture retention at the follicle and dermal level. Its antioxidant activity neutralises free radicals in topical preparations, while its humectant properties attract and bind water molecules within the stratum corneum, improving skin hydration metrics.
This compound is supplied as a solid and is subject to REACH registration requirements for EU market entry. Pharmaceutical-grade material is available for healthcare applications, with procurement quantities typically ranging from laboratory scale to bulk. Buyers should confirm grade specification and documentation requirements prior to ordering.
Physical Properties
| Melting Point | 298 °C (decomp) |
| Boiling Point | 361.16°C (rough estimate) |
| Density | 1.484 |
| Color | Off-White to Pale Beige |
| Form | solid |
| Water Solubility | Soluble in water (4 mg/ml at 25°C), methanol. |
| Refractive Index | 1.5200 (estimate) |
| Log P | -0.292 (est) |
Safety & Handling (Learn More)
Danger GHS02 GHS06 GHS07
H
H226H301H302H319H332
P
P210P233P240P241P242P243P261P264P270P271P280P317P321P330P405P501P264+P265P301+P316P301+P317P304+P340P337+P317P370+P378P403+P235P303+P361+P353P305+P351+P338
Trade & Regulatory
| WGK (Germany) | 3 |
Other Names
2-amino-3-(5-hydroxy-1H-indol-3-yl)propanoic acidDL-5-hydroxytryptophan5-HTPDL-5-HTPHYDROXYTRYPTOPHAN5-hydroxy-tryptophaTIMTEC-BB SBB003354DL-Hydroxytryptophan
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