L-Isoleucine
Also known as: (2S,3S)-2-Amino-3-methylpentanoic acid, L-2-Amino-3-methylvaleric acid, H-Ile-OH, Ile, Isoleucine, (S,S)-Isoleucine, L-(+)-Isoleucine, (2S,3S)-Ile
L-Isoleucine (CAS 73-32-5) 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 168-170ºC, 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. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 73-32-5
- Jingsj CID
- J-912018-1
- Molecular Formula
- C6H13NO2
- Molecular Weight
- 131.173 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 168-170ºC |
|---|---|
| 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 |
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-Isoleucine?
The CAS number of L-Isoleucine is 73-32-5.
What are the molecular formula and molecular weight of L-Isoleucine?
L-Isoleucine has molecular formula C6H13NO2 and molecular weight 131.173 g/mol.
What are the upstream and downstream products of L-Isoleucine?
For L-Isoleucine, Upstream Products: N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-isoleucine, (S)-(-)-2-Methyl-1-butanol, Di-tert-butyl dicarbonate; Downstream Products: N-Chloroacetyl-DL-isoleucine, N-[(Benzyloxy)carbonyl]-N-methyl-L-isoleucine, N-Methyl-L-isoleucine.
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-Isoleucine (CAS 73-32-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-912018-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.