Molekula
Fmoc-L-Leucine
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Fmoc-L-Leucine is a protected amino acid used in peptide synthesis to prevent unwanted side reactions. It serves as a building block in solid-phase peptide synthesis. Available with a CAS number of 35661-60-0, molecular formula C21H23NO4, and molecular weight 353.41 g/mol. Store at 2 to 8 °C. Molekula supplies Fmoc-L-Leucine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
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
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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 | 15603593 |
| CAS Number | 35661-60-0 |
| IUPAC Name | (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-methylpentanoic acid |
| EC Number | 252-662-7 |
| Molecular Formula | C21H23NO4 |
| Molecular Weight | 353.41 |
| Exact Mass | 353.1627 |
| SMILES | CC(C)C[C@@H](C(=O)O)NC(=O)OCC1C2=CC=CC=C2C3=CC=CC=C13 |
| InChIKey | CBPJQFCAFFNICX-IBGZPJMESA-N |
| InChI | InChI=1S/C21H23NO4/c1-13(2)11-19(20(23)24)22-21(25)26-12-18-16-9-5-3-7-14(16)15-8-4-6-10-17(15)18/h3-10,13,18-19H,11-12H2,1-2H3,(H,22,25)(H,23,24)/t19-/m0/s1 |
| PubChem CID | 1549133 |
| REACH Code | Y113 |
| HTS Code | 29242970 |
| Tariff Code | 2924297099 |
Safety & GHS
Detailed safety information available in the SDS — see Documents below.
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.
Synonyms
- (((9H-fluoren-9-yl)methoxy)carbonyl)-L-leucine
- (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-methylpentanoic acid
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-methylpentanoic acid
- Fmoc-L-Leu-OH
- Fmoc-Leu-OH
- fmoc-leucine
- N-(9-fluorenylmethoxycarbonyl)-L-leucine
- n-(fluorenyl-9-methoxycarbonyl)leucine
- N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-leucine
- N-Fmoc-L-leucine
Frequently asked questions
What is Fmoc-L-Leucine used for?
Fmoc-L-Leucine is primarily used in peptide synthesis as a protected amino acid building block.
What is the chemical formula and molecular weight of Fmoc-L-Leucine?
The formula is C21H23NO4 with a molecular weight of 353.41 g/mol.
How should Fmoc-L-Leucine be stored?
It should be stored at 2 to 8 °C, protected from light and moisture.
What grade is available for Fmoc-L-Leucine?
Fmoc-L-Leucine is available in high-purity research grade suitable for peptide synthesis.
Can Molekula supply Fmoc-L-Leucine in bulk?
Yes, Molekula can supply Fmoc-L-Leucine in bulk quantities—please contact sales for details.
What documentation comes with an order of Fmoc-L-Leucine?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS).
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.