Fmoc-Leu-OH
- CAS No.
- 35661-60-0
- Chemical Name:
- Fmoc-Leu-OH
- Synonyms
- FMOC-LEU-OH;FMOC-LEU;FMOC-L-LEU-OH;FMOC-L-LEU;(((9H-fluoren-9-yl)methoxy)carbonyl)-L-leucine;FMOC-LEUCINE;FMOC-L-LEUCINE;(S)-2-((((9H-fluoren-9-yl)Methoxy)carbonyl)aMino)-4-Methylpentanoic acid;N-[(9H-FLUOREN-9-YLMETHOXY)CARBONYL]-L-LEUCINE;L-LEUCINE-N-FMOC
- CBNumber:
- CB5477829
- Molecular Formula:
- C21H23NO4
- Molecular Weight:
- 353.41
- MDL Number:
- MFCD00037133
- MOL File:
- 35661-60-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 152-156 °C(lit.) |
|---|---|
| alpha | -26 º (c=1,DMF 24 ºC) |
| Boiling point | 486.83°C (rough estimate) |
| Density | 1.2107 (rough estimate) |
| refractive index | -25 ° (C=1, DMF) |
| storage temp. | Store below +30°C. |
| solubility | DMF (Slightly), DMSO (Slightly) |
| form | Solid |
| pka | 3.91±0.21(Predicted) |
| color | White to Off-White |
| optical activity | [α]20/D 25±2°, c = 1% in DMF |
| BRN | 2178254 |
| Stability | Hygroscopic |
| Major Application | peptide synthesis |
| 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 |
| InChIKey | CBPJQFCAFFNICX-IBGZPJMESA-N |
| SMILES | CC(C)C[C@H](NC(=O)OCC1c2ccccc2-c3ccccc13)C(O)=O |
| CAS DataBase Reference | 35661-60-0(CAS DataBase Reference) |
| FDA UNII | KF18F70UF3 |
| UNSPSC Code | 12352209 |
| NACRES | NA.26 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280-P301+P312-P302+P352-P305+P351+P338 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 22-24/25-36/37/39-27-26 | |||||||||
| WGK Germany | 3 | |||||||||
| HS Code | 2924 29 70 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
Fmoc-Leu-OH price More Price(114)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 8.52011 | Fmoc-Leu-OH Novabiochem? | 35661-60-0 | 25g | $33.8 | 2026-04-30 | Buy |
| Sigma-Aldrich | 8.52011 | Fmoc-Leu-OH Novabiochem? | 35661-60-0 | 100g | $83 | 2026-04-30 | Buy |
| Sigma-Aldrich | 8.52011 | Fmoc-Leu-OH Novabiochem? | 35661-60-0 | 250g | $179 | 2026-04-30 | Buy |
| Sigma-Aldrich | 8.52011 | Fmoc-Leu-OH Novabiochem® | 35661-60-0 | 500 g | $328 | 2026-04-30 | Buy |
| Sigma-Aldrich | 8.52011 | Fmoc-Leu-OH Novabiochem? | 35661-60-0 | 1kg | $588 | 2026-04-30 | Buy |
Fmoc-Leu-OH Chemical Properties, Uses, Production
Description
Fmoc-Leu-OH is isomeric with Fmoc-Ile-OH. Like isoleucine, leucine has branching in the sidechain. The branching is at the gamma carbon instead of the beta carbon as in isoleucine. It is used in chemical and peptide syntheses.
Chemical Properties
white to light yellow crystal powde
Uses
Fmoc-L-Leu-OH, is an amino acid derivative, used in peptide chemistry. It is also one of the novel PPARγ ligands that can activate PPARγ in different ways, that reduces osteoclasts differentiation, and thus are better therapeutic targets in diabetes than traditional antidiabetic drugs.
Application
Fmoc-Leu-OH can be used as a reactant to synthesize:
Various oligopeptides by reacting with functionalized α-amino acid hydrochloride salts.
A cyclic depsipeptide sansalvamide A, a natural product found in marine fungus.
Streptocidin AD, decapeptide antibiotics naturally found in Streptomycessp. Tü 6071.
Coumaroyl dipeptide amide that can be used for cosmetic applications.
Preparation
Fmoc-L-leucine is prepared by reacting L-leucine with 9-fluorenylmethoxycarbonyl chloride.
reaction suitability
reaction type: Fmoc solid-phase peptide synthesis
Biological Activity
Anti-inflammatory agent; increases intracellular Ca 2+ levels. PPARγ ligand that induces insulin sensitization, but not adipogenesis.
Synthesis
103321-59-1
35661-60-0
139551-97-6
The general procedure for the synthesis of Fmoc-L-leucine and compound (CAS:139551-97-6) using compound (CAS:103321-59-1) as starting material was as follows:Example 22 Synthesis of N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-leucine amide (NPC 15528). To a 10 mL THF solution containing 3.5 mL (10 mmol) of N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-leucine chloride, 1.26 mL (20 mmol) of a 29.6% ammonia solution was slowly added at room temperature. The reaction mixture was stirred for 30 min, then diluted with 100 mL of water and extracted with ethyl acetate (5 x 20 mL). The organic layers were combined and washed sequentially with 10% potassium carbonate solution, water and brine, then dried and concentrated. The product was recrystallized by ethanol to give 1.26 g (36% yield) of N-(9-fluorenylmethoxycarbonyl)-L-leucine amide as a colorless solid with a melting point of 79-80 °C.
References
[1] Patent: US5079260, 1992, A
Fmoc-Leu-OH Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
1of2
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Lanxi Xingnuo Import and Export Trading Co., Ltd | 0579-8831088 15888978871 | 994350525@qq.com | China | 23 | 58 |
| GenChem & GenPharm (Changzhou) Co., Ltd. | 0519-85720003 18861157602 | 410649415@qq.com | China | 111 | 58 |
| Shandong fen Boyu Biotechnology Co.,LTD | 13356310019 13356310019; | boyu2024@163.com | China | 3947 | 58 |
| Chengdu Tachem Co., Ltd | 028-61682518; 19983060238 | sales@tachem.cn | China | 102 | 58 |
| Chengdu ZY Biochemical Technology Co., Ltd. | 88680086 13398185735 | fengzilong@zybiochem.com | China | 177 | 58 |
| Wuhan Grand Hoyo Co., Ltd. | 15377006636 | 670196467@qq.com | China | 31 | 58 |
| Zhuhai Kerui Biotechnology Co., Ltd | 18990613995 | 1342928505@qq.com | China | 133 | 58 |
| Zhangjiagang Specom Biochemical Co., Ltd. | 512-0512-58992291,58992287 18606280718 | admin@spbiochem.com | China | 306 | 62 |
| Emeishan Hongsen Biopharmaceutical Co., Ltd. | 0833-6186278 19162541913 | sales@hongshengpharm.com | China | 99 | 60 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
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View Latest Price from Fmoc-Leu-OH manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-09-17 | FMOC-L-Leucine
35661-60-0
|
1KG | 98%min | 1000kg | WUHAN FORTUNA CHEMICAL CO., LTD | ||
![]() |
2026-09-17 | Fmoc-L-leu-OH
35661-60-0
|
1kg | 98% | 1T | Sichuan HongRi Pharma-Tech Co.,Ltd | ||
![]() |
2026-08-19 | Fmoc-Leu-OH
35661-60-0
|
1KG | 99% | 1000 KG | Shaanxi Dideu New Materials Co. Ltd |
-

- FMOC-L-Leucine
35661-60-0
- $0.00
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-

- Fmoc-L-leu-OH
35661-60-0
- 98%
- Sichuan HongRi Pharma-Tech Co.,Ltd
-

- Fmoc-Leu-OH
35661-60-0
- $0.00
- 99%
- Shaanxi Dideu New Materials Co. Ltd





