(2R,3R)-2-Amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid
- CAS
- 51829-98-2
- Formula
- C9H11NO5
- MW
- 213.19 g/mol
ZX-029119
Impurity reference standards
Droxidopa impurity standards
15 characterised compounds linked to Droxidopa are catalogued here, from named pharmacopoeial impurities to synthesis intermediates and breakdown products. Highlights of the range are 5 metabolites or hydroxylated analogues.
15reference materials
5metabolites
Each lot ships with a certificate of analysis, and characterisation data such as 1H-NMR, mass spectrum and HPLC purity can be shared before you order. They are bought for system suitability, peak identification, quantitation against limits and the impurity justification sections of regulatory submissions.
By impurity type
Metabolites5Hydroxy, desmethyl and conjugated forms
Counts are based on product names. One compound can fall into more than one type.
All Droxidopa reference materials
1–15 of 15 standards
(βR)-β-Hydroxy-3-(phenylmethoxy)-N-[(phenylmethoxy)carbonyl]-O-(phenylmethyl)-L-tyrosine
- CAS
- 55382-14-4
- Formula
- C31H29NO7
- MW
- 527.6 g/mol
ZX-021494
5,6,11,12-Tetrahydro-5,11-epiminodibenzo[a,e][8]annulene-2,3,8,9-tetraol
- CAS
- 90044-46-5
- Formula
- C16H15NO4
- MW
- 285.29 g/mol
ZX-024398
Questions
Droxidopa impurities, answered
How many Droxidopa impurity standards does Zemixal list?
The catalogue currently lists 15 compounds for Droxidopa, including 5 metabolites or hydroxylated analogues. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Droxidopa impurity standard?
A certificate of analysis travels with every lot. On request we share the characterisation set, usually 1H-NMR, mass spectrum, HPLC purity and IR, and for some materials TGA or water content. Ask for the data before ordering if your QA team needs to review it.
Can Zemixal make a Droxidopa impurity that is not listed?
Often yes. Send the structure, name or CAS number with the quantity you need and our sourcing team checks custom synthesis options, usually from 10 mg up to gram scale, with a quoted lead time.