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DL-2-Amino-4-phosphonobutyric acid

DL-2-氨基-4-磷丁酸

Also known as: DL-AP4, (±)-2-Amino-4-phosphonobutyric acid, DL-2-Amino-4-phosphonobutanoic acid, AP-4, DL-APB

DL-2-Amino-4-phosphonobutyric acid (CAS 20263-07-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H10NO5P and a molecular weight of 183.10000 g/mol. It is also known as DL-AP4, (±)-2-Amino-4-phosphonobutyric acid and DL-2-Amino-4-phosphonobutanoic acid. Key properties include a melting point of 225ºC, a boiling point of 491.7ºC at 760mmHg, a density of 1.628g/cm3 and a flash point of 251.2ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20263-07-4
Jingsj CID
J-12954-1
Molecular Formula
C4H10NO5P
Chinese Name
DL-2-氨基-4-磷丁酸
Molecular Weight
183.10000 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point225ºC
Boiling Point491.7ºC at 760mmHg
Density1.628g/cm3
Flash Point251.2ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of DL-2-Amino-4-phosphonobutyric acid?

The CAS number of DL-2-Amino-4-phosphonobutyric acid is 20263-07-4.

What are the molecular formula and molecular weight of DL-2-Amino-4-phosphonobutyric acid?

DL-2-Amino-4-phosphonobutyric acid has molecular formula C4H10NO5P and molecular weight 183.10000 g/mol.

Is DL-2-Amino-4-phosphonobutyric acid hazardous?

DL-2-Amino-4-phosphonobutyric acid has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "DL-2-Amino-4-phosphonobutyric acid (CAS 20263-07-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12954-1 (accessed 2026-10-25).

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