DL-Alanyl-DL-leucine

DL-丙氨酰-DL-亮氨酸

Also known as: H-DL-Ala-DL-Leu-OH, DL-Ala-DL-Leu, DL-Alanine-DL-leucine, NSC 89664, Alanylleucine, 2-(2-aminopropanoylamino)-4-methylpentanoic acid

DL-Alanyl-DL-leucine (CAS 1999-42-4) 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. It is also known as H-DL-Ala-DL-Leu-OH, DL-Ala-DL-Leu and DL-Alanine-DL-leucine. Key properties include a boiling point of 409.7ºC at 760 mmHg, a density of 1.108 g/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.
1999-42-4
Jingsj CID
J-43508-0
Molecular Formula
C9H18N2O3
Chinese Name
DL-丙氨酰-DL-亮氨酸
Molecular Weight
202.25100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point409.7ºC at 760 mmHg
Density1.108 g/cm3
Flash Point201.6ºC

Frequently Asked Questions

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

The CAS number of DL-Alanyl-DL-leucine is 1999-42-4.

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

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

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

Last updated:

How to cite: Jingsj. "DL-Alanyl-DL-leucine (CAS 1999-42-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43508-0 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.