L-Leucine
Also known as: (S)-2-Amino-4-methylpentanoic acid, 2-Amino-4-methylvaleric acid, Leucine, L-2-Amino-4-methylpentanoic acid, alpha-Aminoisocaproic acid, 4-Methyl-L-norvaline, Leucine (USP), (S)-Leucine, L-alpha-Aminoisocaproic acid
L-Leucine (CAS 61-90-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H13NO2 and a molecular weight of 131.173 g/mol. Key properties include a melting point of 286-288 ºC, a boiling point of 225.8±23.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 90.3±22.6 °C. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 61-90-5
- Jingsj CID
- J-35688-7
- Molecular Formula
- C6H13NO2
- Molecular Weight
- 131.173 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | 286-288 ºC |
|---|---|
| Boiling Point | 225.8±23.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 90.3±22.6 °C |
| Exact Mass | 131.094635 |
| PSA | 63.32000 |
| LogP | 0.73 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.463 |
| Additional Property | 22.4 g/L (20 C) |
Activity & Biological Data
| Target | mTORC1 |
|---|---|
| Additional Information | [1]. Rachdi L, et al. L-leucine alters pancreatic β-cell differentiation and function via the mTor signaling pathway. Diabetes. 2012 Feb;61(2):409-17. |
Customs & Trade Information
| HS Code | 2922499990 |
|---|---|
| Summary | HS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of L-Leucine?
The CAS number of L-Leucine is 61-90-5.
What are the molecular formula and molecular weight of L-Leucine?
L-Leucine has molecular formula C6H13NO2 and molecular weight 131.173 g/mol.
Which suppliers offer L-Leucine?
1 supplier(s) listed; request a quote for pricing.
What are the upstream and downstream products of L-Leucine?
For L-Leucine, Upstream Products: DL-Leucine, L-Leucine benzyl ester p-toluenesulfonate salt; Downstream Products: PTH-leucine, N-Cbz-N-methyl-L-leucine, Cyclo(L-Phe-L-Phe).
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "L-Leucine (CAS 61-90-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35688-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.