DL-threo-Droxidopa

DL-苏-3,4-二羟基苯丝氨酸

Also known as: (2RS,3RS)-2-AMINO-3-(3,4-DIHYDROXY-PHENYL)-3-HYDROXY-PROPIONIC ACID, DL-threo-DOPS, DL-DOPS, DL-threo-β-(3,4-dihydroxyphenyl)serine, β-(3,4-dihydroxyphenyl)-DL-serine, H-DL-Ser(3,4-dihydroxyphenyl)-OH, H-DL-β-(3,4-dihydroxyphenyl)-DL-Ser-OH

DL-threo-Droxidopa (CAS 3916-18-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H11NO5 and a molecular weight of 213.18700 g/mol. It is also known as (2RS,3RS)-2-AMINO-3-(3,4-DIHYDROXY-PHENYL)-3-HYDROXY-PROPIONIC ACID, DL-threo-DOPS and DL-DOPS. Key properties include a melting point of >200ºC, a boiling point of 549.8ºC at 760mmHg, a density of 1.608g/cm3 and a flash point of 286.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3916-18-5
Jingsj CID
J-1309143-1
Molecular Formula
C9H11NO5
Chinese Name
DL-苏-3,4-二羟基苯丝氨酸
Molecular Weight
213.18700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point>200ºC
Boiling Point549.8ºC at 760mmHg
Density1.608g/cm3
Flash Point286.3ºC

Frequently Asked Questions

What is the CAS number of DL-threo-Droxidopa?

The CAS number of DL-threo-Droxidopa is 3916-18-5.

What are the molecular formula and molecular weight of DL-threo-Droxidopa?

DL-threo-Droxidopa has molecular formula C9H11NO5 and molecular weight 213.18700 g/mol.

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

Last updated:

How to cite: Jingsj. "DL-threo-Droxidopa (CAS 3916-18-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1309143-1 (accessed 2026-10-26).

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