Molekula
N-CBZ-L-Tryptophan-OH
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
N-CBZ-L-Tryptophan-OH is a protected amino acid derivative used in peptide synthesis and pharmaceutical research. It serves as an intermediate in the production of bioactive compounds and drug candidates. Available with CAS number 7432-21-5, molecular formula C19H18N2O4, and molecular weight 338.36 g/mol. Store at 2 to 8 °C. Signal word: Warning.
Molekula supplies N-CBZ-L-Tryptophan-OH in 25 g packs, from £37.08 inc. VAT. It is made or sourced to order. Every batch ships with a certificate of analysis, and a safety data sheet is available. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
On backorder — expected to ship by 5 December 2026
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £30.90 per pack ex VAT · £37.08 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Solid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 20706773 |
| CAS Number | 7432-21-5 |
| IUPAC Name | (2S)-3-(1H-indol-3-yl)-2-(phenylmethoxycarbonylamino)propanoic acid |
| EC Number | 231-074-4 |
| Molecular Formula | C19H18N2O4 |
| Molecular Weight | 338.36 |
| Exact Mass | 338.1267 |
| SMILES | C1=CC=C(C=C1)COC(=O)N[C@@H](CC2=CNC3=CC=CC=C32)C(=O)O |
| InChIKey | AHYFYYVVAXRMKB-KRWDZBQOSA-N |
| InChI | InChI=1S/C19H18N2O4/c22-18(23)17(10-14-11-20-16-9-5-4-8-15(14)16)21-19(24)25-12-13-6-2-1-3-7-13/h1-9,11,17,20H,10,12H2,(H,21,24)(H,22,23)/t17-/m0/s1 |
| PubChem CID | 101176 |
| REACH Code | Y113 |
| HTS Code | 29339979 |
| Tariff Code | 2933998090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- BENZYLOXYCARBONYL-L-TRYPTOPHAN
- Benzyloxycarbonyltryptophan
- Cbz-L-Trp-OH
- L-Tryptophan, N-[(phenylmethoxy)carbonyl]-
- N-Cbz-L-tryptophan
- N-CBZ-tryptophane
- Na-Cbz-L-tryptophan
- Nalpha-Cbz-L-tryptophan
- Z-Trp-OH
- z-tryptophan
Frequently asked questions
What is N-CBZ-L-Tryptophan-OH used for?
It is primarily used as an intermediate in the synthesis of pharmaceuticals and peptides, particularly in the production of tryptophan-based drugs.
What is the chemical formula and molecular weight?
The formula is C19H18N2O4 with a molecular weight of 338.36 g/mol.
How should N-CBZ-L-Tryptophan-OH be stored?
Store at 2 to 8 °C in a cool, dry place, protected from light and moisture.
What grade is available for this product?
The product specification lists its appearance as a solid; please contact us for details on available grades and specifications.
Can Molekula supply this in bulk?
Yes, we can supply N-CBZ-L-Tryptophan-OH in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation is available upon request.
Where can I buy N-CBZ-L-Tryptophan-OH?
Directly from Molekula, which lists N-CBZ-L-Tryptophan-OH in 25 g packs from £37.08 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.