L-Alanyl-L-leucine

Also known as: H-Ala-Leu-OH, Ala-Leu, Ala-Leu-OH, L-Ala-L-Leu-OH, N-L-alanyl-L-leucine, H2N-Ala-Leu-OH, MFCD00065106, EINECS 221-977-1

L-Alanyl-L-leucine (CAS 3303-34-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H18N2O3 and a molecular weight of 202.25100 g/mol. Key properties include a boiling point of 409.7ºC at 760mmHg, a density of 1.108g/cm3 and a flash point of 201.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3303-34-2
Jingsj CID: J-1973224-2
Molecular Formula: C₉H₁₈N₂O₃
Molecular Weight: 202.25100 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	409.7ºC at 760mmHg
Density	1.108g/cm3
Flash Point	201.6ºC
Exact Mass	202.13200
PSA	92.42000
LogP	1.04030
Refractive Index	1.485
Storage Conditions	−20°C

Activity & Biological Data

Target	Human Endogenous Metabolite

Customs & Trade Information

HS Code	2924199090
Summary	2924199090. other acyclic amides (including acyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of L-Alanyl-L-leucine?

The CAS number of L-Alanyl-L-leucine is 3303-34-2.

What are the molecular formula and molecular weight of L-Alanyl-L-leucine?

L-Alanyl-L-leucine has molecular formula C9H18N2O3 and molecular weight 202.25100 g/mol.

What are the upstream and downstream products of L-Alanyl-L-leucine?

For L-Alanyl-L-leucine, Upstream Products: L-Alanine, L-Leucine, N-(tert-Butoxycarbonyl)-L-alanine.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "L-Alanyl-L-leucine (CAS 3303-34-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1973224-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.